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CUET PG 2024 Forensic Science Question Paper Pdf- Check Solutions with Answer Key Pdf

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Diksha Seth

Content Strategist | Updated On - Jan 15, 2025

CUET PG 2024 Forensic Science 28th March 2024 Shift 1 Question Paper with Solution PDF is available for download here. Students found the Crime Scene Investigation section easy, Forensic Toxicology moderate, and Advanced Forensic Techniques difficult. The Advanced Forensic Techniques section carried the highest weightage, and the overall difficulty level was moderate to difficult.

CUET PG 2024 Forensic Science Question Paper with Answer Key PDF

CUET PG 2024 Forensic Science Question Paper with Answer Key download iconDownload Check Solution

CUET PG 2024 Forensic Science Questions with Solutions

Question 1:

Match List-I with List-II:

List-I List-II
(A) Spinal poison (I) Carbon monoxide
(B) Cardiac poison (II) Mercury
(C) Asphyxiant (III) Strychnine
(D) Nephrotoxic (IV) Aconite

Options:

  1. (A) - (I), (B) - (III), (C) - (I), (D) - (IV)
  2. (A) - (I), (B) - (IV), (C) - (I), (D) - (III)
  3. (A) - (I), (B) - (I), (C) - (IV), (D) - (III)
  4. (A) - (I), (B) - (IV), (C) - (I), (D) - (I)
Correct Answer: (2) (A) - (I), (B) - (IV), (C) - (III), (D) - (II)
View Solution

- Spinal poison corresponds to Carbon monoxide, which affects the central nervous system.
- Cardiac poison refers to Aconite, known for its effects on heart rhythms.
- Asphyxiants include Strychnine, which affects breathing by causing muscle spasms.

- Nephrotoxic substances like Mercury damage the kidneys.
- Each category reflects the toxicological effects of specific substances.

Question 2:

Match List-I with List-II:

List-I List-II
(A) Section 32, IEA (I) Procedure of recording of Medical Evidence
(B) Section 45, IEA (II) Dying declaration
(C) Section 138, IEA (III) Part of Mental Health Act
(D) Section 136, IEA (IV) Opinion of experts
Correct Answer: (1) (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
View Solution

- Section 32, IEA: Deals with the concept of dying declarations, which are statements made by a person on the verge of death, regarding the cause or circumstances of their impending death.
- Section 45, IEA: Refers to opinions of experts, such as medical or forensic experts, which are admissible in court to aid the judgment process.
- Section 138, IEA: Describes the procedure for recording medical evidence in court under cross-examination and re-examination.
- Section 136, IEA: Provides the court’s discretion to decide the admissibility of evidence, including expert opinions.

These sections are critical in legal proceedings to ensure accurate evidence handling and expert testimony application in forensic and medical cases.

Question 3:

Match List-I with List-II:

List-I List-II
(A) Laceration (I) Sharp cutting force
(B) Exit wound (II) Hard and blunt force
(C) Incision (III) Inverted margins
(D) Entry wound (IV) Everted margins

Options:

  1. (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
  2. (A) - (III), (B) - (IV), (C) - (II), (D) - (I)
  3. (A) - (IV), (B) - (III), (C) - (I), (D) - (II)
  4. (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
Correct Answer: (4) (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
View Solution

- Lacerations are caused by hard and blunt force, resulting in irregular wounds.
- Exit wounds often have everted margins, indicating the direction of bullet travel.
- Incisions result from sharp cutting forces.

- Entry wounds typically show inverted margins, indicative of bullet entry.
- These differences are essential for forensic identification.

Question 4:

Density gradient of glass can be measured by:

  1. Benzene: Ethanol
  2. Bromoform: Ethanol
  3. Bromoform: Bromobenzene
  4. Bromobenzene: Alcohol
Correct Answer: (3) Bromoform: Bromobenzene
View Solution

The density gradient method uses a combination of Bromoform and Bromobenzene. This mixture provides precise density ranges for matching glass fragments.

This technique is particularly useful in forensic science for determining the origin of glass pieces in criminal investigations.

Question 5:

Which of the following is not a man-made fiber?

  1. Nylon
  2. Vicuna
  3. Acrylic
  4. Polyester
Correct Answer: (2) Vicuna
View Solution

Vicuna is a natural fiber obtained from the Vicuna animal, unlike synthetic fibers such as Nylon, Acrylic, and Polyester.

Question 6:

Which of the following is not an example of depressants?

  1. Amphetamines
  2. Alcohol
  3. Diazepam
  4. Chlordiazepoxide
Correct Answer: (1) Amphetamines
View Solution

Amphetamines are stimulants that increase alertness and energy, unlike depressants such as Alcohol, Diazepam, and Chlordiazepoxide, which reduce central nervous system activity.

Question 7:

Which of these is preferred as an antidote for opium poisoning?

  1. Naloxone
  2. Belladonna
  3. Atropine
  4. Nalorphine
Correct Answer: (1) Naloxone
View Solution

Naloxone is a competitive opioid antagonist that is effective in reversing the effects of opium poisoning.

Other options like Atropine and Nalorphine are not specific antidotes for opium, making Naloxone the preferred choice.

Question 8:

Who invented DNA fingerprinting?

  1. Alec Jeffreys
  2. Kary Mullis
  3. Karl Landsteiner
  4. Edmond Locard
Correct Answer: (1) Alec Jeffreys
View Solution

Alec Jeffreys invented DNA fingerprinting in 1984, revolutionizing forensic science by enabling the identification of individuals through their unique DNA profiles.

Question 9:

Which of the following is responsible for the "Run amok" condition?

  1. Opium
  2. Cannabis
  3. Cocaine
  4. Ethanol
Correct Answer: (2) Cannabis
View Solution

Cannabis can sometimes lead to "Run amok," a sudden and violent behavior outbreak due to its psychotropic effects.

This condition is rare and typically occurs in individuals with a predisposition to aggressive outbursts under the influence of cannabis.

Question 10:

The cannabis product such as ganja is prepared from which part of the plant?

  1. Flowering tops
  2. Roots
  3. Stem
  4. Leaves
Correct Answer: (1) Flowering tops
View Solution

Ganja is prepared from the flowering tops of the cannabis plant, which contain a high concentration of tetrahydrocannabinol (THC), the psychoactive compound in cannabis.

Question 11:

The autopsy is performed on:

  1. Intestine
  2. Head
  3. The whole body
  4. Only injured parts of the body
Correct Answer: (3) The whole body
View Solution

An autopsy involves the examination of the whole body to determine the cause of death, extent of injuries, or any underlying diseases.

Question 12:

Which one of these is not included in the classification of hanging?

  1. Partial hanging
  2. Complete hanging
  3. Venous congestion
  4. Atypical hanging
Correct Answer: (3) Venous congestion
View Solution

Venous congestion is a pathological condition and not a classification of hanging, which includes partial, complete, and atypical hanging.

Question 13:

Indented writing cannot be observed by:

  1. Naked eye
  2. ESDA
  3. Electrophoresis
  4. Microscopy
Correct Answer: (3) Electrophoresis
View Solution

Indented writing is detected using techniques like ESDA, microscopy, or visual inspection.

Electrophoresis is not used for detecting indented writing as it is a technique primarily employed for separating molecules based on their size and charge.

Question 14:

The medico-legal autopsy is done by the permission of:

  1. Magistrate
  2. Forensic serologist
  3. Relatives
  4. Medical officer
Correct Answer: (1) Magistrate
View Solution

A medico-legal autopsy requires permission from a magistrate to ensure legal compliance and validity.

Question 15:

Latent fingerprints can be developed by:

  1. Neutron Activation Analysis
  2. Casting
  3. Electrophoresis
  4. Iodine fuming
Correct Answer: (4) Iodine fuming
View Solution

Iodine fuming is commonly used for developing latent fingerprints as it reacts with oils and sweat.

Question 16:

The pattern having two separate and distinct overlapping loops is known as:

  1. Twinned loop
  2. Lateral pocket loop
  3. Central pocket loop
  4. Accidental
Correct Answer: (2) Lateral pocket loop
View Solution

A lateral pocket loop has two distinct loops with cores opening towards the same side, forming a unique pattern.

Question 17:

Which of the following is not a class characteristic of handwriting?

  1. Writing slant
  2. Form of allelographs
  3. Writing alignment
  4. Embellishments
Correct Answer: (4) Embellishments
View Solution

Embellishments are individual characteristics, while slant, form, and alignment are considered class characteristics.

Question 18:

The region of hair located between two layers containing pigment granules is known as:

  1. Cuticle
  2. Cortex
  3. Medulla
  4. Shaft
Correct Answer: (2) Cortex
View Solution

The cortex is the middle layer of hair that contains pigment granules responsible for hair color.

Question 19:

The contribution of Edmond Locard is regarding which of the following?

  1. Law of probability
  2. Law of progressive change
  3. Law of exchange
  4. Law of individuality
Correct Answer: (3) Law of exchange
View Solution

Edmond Locard's Exchange Principle states that "every contact leaves a trace," forming the basis of forensic science.

Question 20:

The process of reading or interpreting erased or obliterated material is known as:

  1. Decipherment
  2. Detection
  3. Efface
  4. Lithographic process
Correct Answer: (1) Decipherment
View Solution

Decipherment involves reconstructing erased or obscured writings using specialized forensic techniques.

Question 21:

Which of the following is the sign of antemortem hanging?

  1. Lividity
  2. Algor mortis
  3. Dribbling of saliva
  4. Vomit
Correct Answer: (3) Dribbling of saliva
View Solution

Dribbling of saliva is a characteristic sign of antemortem hanging as it occurs due to compression of the salivary ducts by the ligature.

Question 22:

In respect to PCR technique, in a degraded biological sample, the longer the amplicon length:

  1. The higher the risk of failure in PCR
  2. The lowest the risk of failure in PCR
  3. The higher the risk of disturbing coding region
  4. The higher temperature is required to get better results
Correct Answer: (1) The higher the risk of failure in PCR
View Solution

Degraded DNA samples often result in PCR failure for longer amplicon lengths due to incomplete or fragmented templates.

Question 23:

To prevent contamination during setup of PCR reaction, which one of these is not important?

  1. Pre- and post-PCR samples should be processed in separate areas
  2. Equipment used for pre- and post-PCR steps should be cleaned after every use
  3. Reagents used for pre- and post-PCR steps should be separated
  4. Adding smaller amounts of Bovine Serum Albumin (BSA) is avoided
Correct Answer: (4) Adding smaller amounts of Bovine Serum Albumin (BSA) is avoided
View Solution

Bovine Serum Albumin (BSA) helps stabilize the reaction and is unrelated to contamination prevention in PCR setup.

Question 24:

In which of the following, the Takayama reagent gives positive results?

  1. Saliva stain
  2. Urine stain
  3. Blood stain
  4. Vaginal stain
Correct Answer: (3) Blood stain
View Solution

The Takayama test is a confirmatory test for the presence of hemoglobin in blood stains.

Question 25:

Arrange the following in chronological order:

  1. (C), (D), (A), (B)
  2. (A), (B), (C), (D)
  3. (B), (A), (D), (C)
  4. (C), (B), (D), (A)
Correct Answer: (1) (C), (D), (A), (B)
View Solution

The sequence represents the development of firearms: Matchlock, Wheel lock, Snaphaunce, and Flint lock.

Question 26:

Which among the following does not fall under the category of unnatural sexual offences?

  1. Sodomy
  2. Incest
  3. Bestiality
  4. Buccal coitus
Correct Answer: (2) Incest
View Solution

Incest is categorized as a moral offence rather than an unnatural sexual offence.

Question 27:

Arrange the following steps chronologically to be followed at a scene of crime (SOC):

(A) Collection of evidences

(B) Securing of SOC

(C) Photography and videography

(D) Packaging of evidences

  1. (A), (B), (C), (D)
  2. (B), (C), (A), (D)
  3. (B), (A), (D), (C)
  4. (C), (B), (D), (A)
Correct Answer: (2) (B), (C), (A), (D)
View Solution

The correct sequence is: Securing the scene, Photography/videography, Collection of evidence, and Packaging of evidence.

Question 28:

Teaching of Forensic Science subject was first started in which of these places?

  1. Chandigarh
  2. Sagar, M.P.
  3. Delhi
  4. Mumbai
Correct Answer: (2) Sagar, M.P.
View Solution

Sagar University, Madhya Pradesh, was the first to introduce forensic science education in India.

Question 29:

In HPLC, when the packing material used in the column is polar in nature and the mobile phase is relatively non-polar, it is known as:

  1. Normal phase
  2. Reverse phase
  3. Neutral phase
  4. Stationary phase
Correct Answer: (1) Normal phase
View Solution

Normal phase chromatography uses a polar stationary phase and a non-polar mobile phase for separation.

Question 30:

Which of these is not a fingerprint pattern?

  1. Whorl
  2. Arch
  3. Loop
  4. Ridge
Correct Answer: (4) Ridge
View Solution

Ridge is a general feature in fingerprints, not a specific pattern like whorl, arch, or loop.

Question 31:

Which one of these is another term for an invisible fingerprint found at the scene of crime?

  1. Latent fingerprint
  2. Blood smeared fingerprint
  3. Plastic fingerprint
  4. Greased fingerprint
Correct Answer: (1) Latent fingerprint
View Solution

Latent fingerprints are invisible to the naked eye and require special techniques to be visualized, such as dusting or chemical development.

Question 32:

Sodium chloride present in latent fingerprints reacts with which of the following to produce visible prints?

  1. Grey powder
  2. Silver nitrate
  3. Ninhydrin
  4. Super glue
Correct Answer: (2) Silver nitrate
View Solution

Silver nitrate reacts with sodium chloride in latent fingerprints to form silver chloride, which darkens upon exposure to light, making the prints visible.

Question 33:

Starch iodine test can be performed for which of the following body fluids?

  1. Blood
  2. Urine
  3. Saliva
  4. Vaginal discharge
Correct Answer: (3) Saliva
View Solution

The starch iodine test is used to detect amylase, an enzyme present in saliva, by observing the breakdown of starch.

Question 34:

Which of the following are examples of natural fibers?
(A) Wool
(B) Cotton
(C) Rayon
(D) Mohair

  1. (A), (B), and (C) only
  2. (A), (B), and (D) only
  3. (A), (C), and (D) only
  4. (B), (C), and (D) only
Correct Answer: (2) (A), (B), and (D) only
View Solution

Wool, cotton, and mohair are natural fibers, whereas rayon is a synthetic fiber.

Question 35:

A deliberate attempt to alter usual handwriting habits in hopes of hiding identity is known as:

  1. Disguise writing
  2. Manuscript writing
  3. Guided writing
  4. Forged writing
Correct Answer: (1) Disguise writing
View Solution

Disguise writing involves intentional modifications to handwriting patterns to avoid identification.

Question 36:

The separation of a mixture of proteins by placing them on a gel-coated plate under the influence of an electric potential is:

  1. Electrophoresis
  2. Polymerase chain reaction
  3. Micrography
  4. X-ray diffraction
Correct Answer: (1) Electrophoresis
View Solution

Electrophoresis separates molecules based on their charge and size under an electric field, commonly used in protein analysis.

Question 37:

Skid marks can be used to determine:

  1. Type of vehicle
  2. Speed of vehicle
  3. Colour of vehicle
  4. Height of vehicle
Correct Answer: (2) Speed of vehicle
View Solution

The length and pattern of skid marks are analyzed to estimate the speed of a vehicle during braking.

Question 38:

Seminal fluid stain is identified by:

  1. Acid phosphatase test
  2. Starch iodine test
  3. Teichmann test
  4. Benzidine test
Correct Answer: (1) Acid phosphatase test
View Solution

The acid phosphatase test detects high levels of acid phosphatase, an enzyme present in seminal fluid.

Question 39:

A writing weakness reflected by shaky and irregular strokes is termed as:

  1. Tremor
  2. Embellishment
  3. Slant
  4. Rhythm
Correct Answer: (1) Tremor
View Solution

Tremor in handwriting is indicative of unsteady hands, often associated with nervousness or physical conditions.

Question 40:

In postmortem drowning cases, diatoms are mainly found in:

  1. Sternum
  2. Femur
  3. Liver
  4. Stomach
Correct Answer: (2) Femur
View Solution

Diatoms from drowning sites can enter the bloodstream and deposit in the bone marrow, such as in the femur.

Question 41:

The smearing over the writing to make the original undecipherable is known as:

  1. Restoration
  2. Obliteration
  3. Erasure
  4. Separation
Correct Answer: (2) Obliteration
View Solution

Obliteration refers to the act of smearing or overwriting text to make it unreadable or undecipherable.

Forensic document examination techniques such as UV or IR light can help recover obliterated writings.

Question 42:

A photograph made through a compound microscope and may be a greatly enlarged image of a small area, is known as:

  1. Microphotograph
  2. Photomicrograph
  3. Projection prints
  4. Photostats
Correct Answer: (2) Photomicrograph
View Solution

A photomicrograph is a photograph taken using a microscope to magnify small details that are not visible to the naked eye.

Photomicrographs are essential for analyzing minute details in forensic evidence.

Question 43:

Which of the separation techniques is best suited for the analysis of alcohol in blood?

  1. Pyrolytic GC
  2. Low temperature GC
  3. Headspace GC
  4. Capillary GC
Correct Answer: (3) Headspace GC
View Solution

Headspace Gas Chromatography (GC) is widely used for the analysis of volatile substances like alcohol in biological samples.

Headspace GC minimizes contamination risks while analyzing volatile compounds such as ethanol.

Question 44:

Which of the following characteristics are observed in complete close contact wound from a shotgun?
(A) Muzzle impression
(B) Tattooing
(C) Seared zone
(D) Blackened zone

  1. (A) and (B) only
  2. (B) and (D) only
  3. (A) and (C) only
  4. (C) and (D) only
Correct Answer: (3) (A) and (C) only
View Solution

Complete close contact wounds often exhibit muzzle impressions and a seared zone caused by the hot gases released during firing.

Close contact wounds often show unique marks like muzzle impressions and tissue searing.

Question 45:

Interruption in the strokes due to the removal of the writing instrument is known as:

  1. Pen pressure
  2. Pen lift
  3. Retouching
  4. Pen emphasis
Correct Answer: (2) Pen lift
View Solution

A pen lift occurs when the writing instrument is temporarily removed from the surface, causing a break in the stroke.

Pen lifts can indicate deliberate pauses or natural interruptions in handwriting.

Question 46:

The loop pattern flowing towards the thumb of that hand is known as:

  1. Ulnar loop
  2. Radial loop
  3. Double loop
  4. Central loop
Correct Answer: (2) Radial loop
View Solution

Radial loops open toward the radius bone, which is on the thumb side of the hand.

Remember, radial loops always flow toward the thumb side of the hand.

Question 47:

AFIS is the abbreviation used for:

  1. All Finger Index System
  2. Automated Fingerprint International Standard
  3. Automated Finger Index System
  4. Automated Fingerprint Identification System
Correct Answer: (4) Automated Fingerprint Identification System
View Solution

AFIS is a computerized system for storing, searching, and matching fingerprints.

AFIS is widely used in forensic investigations for quick and reliable fingerprint matching.

Question 48:

In alcohols, which type of hybridization is associated with the carbon atom to which the hydroxyl group (OH) is connected?

  1. \(sp^3\) hybridization
  2. \(sp^2\) hybridization
  3. \(spd^2\) hybridization
  4. \(sp\) hybridization
Correct Answer: (1) \(sp^3\) hybridization
View Solution

In alcohols, the carbon attached to the hydroxyl group has \(sp^3\) hybridization due to its tetrahedral geometry.

The \(sp^3\) hybridization in alcohols allows for the tetrahedral arrangement of bonds.

Question 49:

The book called "Fingerprint" was written by:

  1. Alphonse Bertillon
  2. Francis Galton
  3. Karl Landsteiner
  4. Edmond Locard
Correct Answer: (2) Francis Galton
View Solution

Francis Galton's book "Fingerprint" laid the foundation for the scientific study and classification of fingerprints.

Francis Galton is regarded as the pioneer of modern fingerprint analysis.

Question 50:

The scientific name of marking nut is:

  1. Claviceps purpurea
  2. Capsicum annuum
  3. Semicarpus anacardium
  4. Azadirachta indica
Correct Answer: (3) Semicarpus anacardium
View Solution

The marking nut, known for its medicinal and toxic properties, is scientifically classified as Semicarpus anacardium.

The nut has been used traditionally for marking and has potent chemical properties useful in forensic investigations.

Question 51:

An unknown compound ‘A' has a molecular formula \(C_4H_6\). When ‘A' is treated with excess \(Br_2\), a new substance ‘B’ with molecular formula \(C_4H_8Br_2\) is formed. The unknown compound ‘A' when reacted with ammonical silver nitrate solution forms a white precipitate. The unknown compound ‘A' could be:

  1. But-1-yne
  2. But-2-yne
  3. But-1-ene
  4. But-2-ene
Correct Answer: (1) But-1-yne
View Solution

The reaction with ammonical silver nitrate indicates the presence of a terminal alkyne group, which reacts to form a precipitate. But-1-yne fits the molecular formula and exhibits this behavior.

Terminal alkynes react with \(AgNO_3\) in ammoniacal solution to form a white precipitate due to the formation of silver acetylide.

Question 52:

What is the refractive index of water at \(25^\circ C\)?

  1. 1.450
  2. 1.256
  3. 1.822
  4. 1.333
Correct Answer: (4) 1.333
View Solution

The refractive index of water at room temperature (\(25^\circ C\)) is 1.333, a standard physical property of water.

The refractive index is essential in calculating light refraction and is widely used in optics.

Question 53:

Which of the following has no charge?

  1. Proton
  2. Neutron
  3. Electron
  4. Anion
Correct Answer: (2) Neutron
View Solution

A neutron is a subatomic particle with no electrical charge, found in the nucleus of an atom.

Neutrons are neutral particles, unlike protons (positive) and electrons (negative).

Question 54:

The study of hair is known as:

  1. Histology
  2. Palynology
  3. Trichology
  4. Hematology
Correct Answer: (3) Trichology
View Solution

Trichology is the branch of science concerned with the study of hair and scalp health.

Trichology is used in forensic investigations to analyze hair for clues.

Question 55:

The following characteristics are peculiar to ballpen writings:

(A) Double track marks within the strokes
(B) Burr striations
(C) Greater ink flow
(D) Feathering at edges

  1. (A) and (B) only
  2. (B) and (C) only
  3. (C) and (D) only
  4. (D) and (A) only
Correct Answer: (1) (A) and (B) only
View Solution

Ballpen writings typically exhibit darker double track marks within the stroke and burr striations caused by the rolling ball mechanism. These features are due to the movement of the ball tip dispensing ink.

Greater ink flow and feathering at edges are not specific to ballpen writings but can occur with other types of pens depending on paper texture and ink viscosity.

Question 56:

The National Forensic DNA Database maintained by the FBI is known as:

  1. AFIS
  2. CODIS
  3. ISIA
  4. DOPA
Correct Answer: (2) CODIS
View Solution

CODIS (Combined DNA Index System) is a software platform used by the FBI for storing and comparing DNA profiles.

CODIS allows for quick DNA matching across forensic databases worldwide.

Question 57:

Rh factor was discovered by:

  1. Landsteiner
  2. Mendel
  3. Hugo
  4. Pearson
Correct Answer: (1) Landsteiner
View Solution

Karl Landsteiner discovered the Rh factor, a significant antigen in blood grouping.

The Rh factor is crucial in determining blood compatibility during transfusions.

Question 58:

Match List-I with List-II:

List-I (Instrument) List-II (Evidence)
(A) Microscope (I) Indented writing
(B) Comparison Microscope (II) Fiber
(C) ESDA (III) Fired bullets
(D) TLC (IV) Ink
  1. (A) - (I), (B) - (II), (C) - (IV), (D) - (II)
  2. (A) - (I), (B) - (II), (C) - (I), (D) - (IV)
  3. (A) - (I), (B) - (I), (C) - (I), (D) - (IV)
  4. (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
Correct Answer: (2) (A) - (I), (B) - (II), (C) - (I), (D) - (IV)
View Solution

Each instrument corresponds to a specific type of forensic evidence. The microscope is used for analyzing fibers, ESDA for detecting indented writing, comparison microscopes for matching fired bullets, and TLC for analyzing inks.

Forensic instruments are specialized tools aiding evidence identification and classification, which is crucial for criminal investigations and laboratory analysis.

Question 59:

Which of the following tests is based on hemoglobin activity?

  1. Kastle Meyer test
  2. Silver nitrate
  3. Choline test
  4. Starch iodine test
Correct Answer: (1) Kastle Meyer test
View Solution

The Kastle Meyer test is a presumptive blood test that reacts with hemoglobin, producing a pink color upon reaction with phenolphthalein and hydrogen peroxide.

This test is highly sensitive and is often used as an initial test to identify potential blood stains before confirmatory tests are conducted.

Question 60:

In which of the following, the recombinant DNA relies on to cut DNA into fragments?

  1. Dimers
  2. DNTPs
  3. Primers
  4. Restriction Enzyme
Correct Answer: (4) Restriction Enzyme
View Solution

Restriction enzymes are specialized proteins that cleave DNA at specific nucleotide sequences, enabling the manipulation of genetic material in recombinant DNA technology.

These enzymes are essential for creating DNA fragments with sticky or blunt ends that can be joined with other DNA fragments during cloning or genetic modification.

Question 61:

The instrument that automates the rapid and precise temperature changes required to copy a DNA strand is:

  1. Centrifuge
  2. Thermal cycler
  3. Incubator
  4. Vortex
Correct Answer: (2) Thermal cycler
View Solution

A thermal cycler, commonly known as a PCR machine, is used to perform the polymerase chain reaction (PCR), which amplifies specific DNA sequences through controlled temperature cycling.

These devices are vital in molecular biology, forensic science, and medical diagnostics for tasks such as gene amplification and mutation detection.

Question 62:

Match List-I with List-II:

List-I:
(A) Cherry red
(B) Bright pink
(C) Dark brown or yellow
(D) Chocolate

List-II:
(I) Potassium chlorate poisoning
(II) Carbon monoxide poisoning
(III) Phosphorous poisoning
(IV) Refrigerated body

  1. (A) - (III), (B) - (IV), (C) - (I), (D) - (II)
  2. (A) - (I), (B) - (I), (C) - (I), (D) - (IV)
  3. (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
  4. (A) - (II), (B) - (IV), (C) - (I), (D) - (I)
Correct Answer: (1) (A) - (III), (B) - (IV), (C) - (I), (D) - (II)
View Solution

Each post-mortem staining color corresponds to a specific cause of death: Cherry red is linked to carbon monoxide poisoning, bright pink to refrigerated body, dark brown or yellow to potassium chlorate poisoning, and chocolate to phosphorus poisoning.

These indicators assist forensic pathologists in determining potential causes of death during autopsies.

Question 63:

The chemical technique utilized for the development of latent prints on non-porous surfaces is:

  1. Takayama test
  2. Elution technique
  3. Super glue fuming
  4. Walker test
Correct Answer: (3) Super glue fuming
View Solution

Super glue fuming, also known as cyanoacrylate fuming, develops latent fingerprints by polymerizing cyanoacrylate onto fingerprint residues on non-porous surfaces such as glass and metal.

This technique is highly effective for preserving fingerprints for further analysis in forensic investigations.

Question 64:

Match the following:

List-I:
(A) If two writings are by a single person
(B) Personal peculiarities, many of them in inconspicuous details
(C) Class characteristics
(D) Individual characteristics

List-II:
(I) May result from influences as the writing system studied etc.
(II) Constitute the backbone of an identification
(III) Then no fundamental differences should exist
(IV) Distinguish the writings of two persons

  1. (A) - (V), (B) - (I), (C) - (I), (D) - (III)
  2. (A) - (I), (B) - (III), (C) - (I), (D) - (V)
  3. (A) - (I), (B) - (III), (C) - (IV), (D) - (II)
  4. (A) - (III), (B) - (IV), (C) - (I), (D) - (II)
Correct Answer: (4) (A) - (III), (B) - (IV), (C) - (I), (D) - (II)
View Solution

Matching the characteristics involves analyzing class traits (common to a group) and individual traits (unique to a person) to determine handwriting authenticity.

Forensic handwriting analysis relies on these characteristics to differentiate between individuals and validate authorship.

Question 65:

The ratio of the speed of light in a vacuum to its speed in a given substance is:

  1. Reflection index
  2. Medullary index
  3. Refractive index
  4. Reflux index
Correct Answer: (3) Refractive index
View Solution

The refractive index measures how light bends as it moves from one medium to another, such as from air to water.

It is a crucial property used in optics, forensic glass analysis, and determining material compositions.

Question 66:

Match List-I with List-II:

List-I:
(A) Chop wound
(B) Punctured wound
(C) Bruises
(D) Incised wound

List-II:
(I) Needle
(II) Knife
(III) Axe
(IV) Whip

  1. (A) - (I), (B) - (II), (C) - (I), (D) - (IV)
  2. (A) - (I), (B) - (I), (C) - (III), (D) - (IV)
  3. (A) - (III), (B) - (II), (C) - (IV), (D) - (II)
  4. (A) - (III), (B) - (I), (C) - (IV), (D) - (II)
Correct Answer: (3) (A) - (III), (B) - (II), (C) - (IV), (D) - (I)
View Solution

Each wound type is associated with a specific weapon: Chop wounds with an axe, punctured wounds with a knife, bruises with a whip, and incised wounds with a needle.

Forensic pathologists use wound patterns to deduce the weapon involved, which is critical for crime scene reconstruction.

Question 67:

The type of protein that acts as a catalyst for certain specific reactions is:

  1. Enzyme
  2. Lactose
  3. Cellulose
  4. Fructose
Correct Answer: (1) Enzyme
View Solution

Enzymes are biological proteins that act as catalysts, speeding up specific biochemical reactions without being consumed in the process.

In forensic science, enzymes are often used to analyze body fluids and detect metabolic reactions in toxicology studies.

Question 68:

Match List-I with List-II:

List-I (Phenotype):
(A) O
(B) A
(C) B
(D) AB

List-II (Antibodies):
(I) Anti-A
(II) None
(III) Anti-B
(IV) Anti-A and Anti-B

  1. (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
  2. (A) - (IV), (B) - (III), (C) - (I), (D) - (II)
  3. (A) - (III), (B) - (I), (C) - (IV), (D) - (II)
  4. (A) - (IV), (B) - (III), (C) - (I), (D) - (II)
Correct Answer: (4) (A) - (IV), (B) - (III), (C) - (I), (D) - (II)
View Solution

Phenotypes and their corresponding antibodies are essential for determining blood compatibility: O has both Anti-A and Anti-B, A has Anti-B, B has Anti-A, and AB has no antibodies.

Blood typing is critical in forensic and medical sciences for transfusions and matching donors and recipients.

Question 69:

Match List-I with List-II:

List-I (Branches):
(A) Podogram
(B) Cheiloscopy
(C) Palatoscopy
(D) Dactylography

List-II (Study area):
(I) Footprints
(II) Fingerprints
(III) Lip prints
(IV) Palatal rugae

  1. (A) - (I), (B) - (III), (C) - (IV), (D) - (II)
  2. (A) - (I), (B) - (II), (C) - (IV), (D) - (III)
  3. (A) - (I), (B) - (III), (C) - (IV), (D) - (II)
  4. (A) - (III), (B) - (IV), (C) - (I), (D) - (II)
Correct Answer: (3) (A) - (I), (B) - (III), (C) - (IV), (D) - (II)
View Solution

Each forensic branch focuses on a specific study area: Podogram studies footprints, Cheiloscopy analyzes lip prints, Palatoscopy examines palatal rugae, and Dactylography focuses on fingerprints.

These branches help identify individuals in forensic investigations through distinctive features.

Question 70:

Which of the following tire marks are created when the tire rotates while simultaneously turning?

  1. Skid marks
  2. Tread marks
  3. Acceleration marks
  4. Yaw marks
Correct Answer: (4) Yaw marks
View Solution

Yaw marks are curved tire marks formed when a vehicle loses control and slides while still rotating.

These marks are commonly analyzed in accident reconstruction to determine speed and motion dynamics during a crash.

Question 71:

What is the full form of FIR?

  1. First Investigation Report
  2. First Information Representor
  3. First Information Report
  4. First Information Request
Correct Answer: (3) First Information Report
View Solution

The FIR, or First Information Report, is a written document prepared by police when they receive information about the commission of a cognizable offense.

An FIR is crucial for initiating an investigation and maintaining a record of the initial complaint in criminal proceedings.

Question 72:

Which of the following tire tread characteristics does not belong to the tire tread nomenclature?

  1. Sipes
  2. Furls
  3. Grooves
  4. Ribs
Correct Answer: (2) Furls
View Solution

Furls are not a recognized characteristic of tire treads. Common tire tread features include sipes, grooves, and ribs, designed to improve traction and stability.

Forensic tire analysis involves examining these characteristics to match suspects’ vehicles to crime scenes.

Question 73:

Which of the following has the highest alcohol percentage?

  1. Wine
  2. Rum
  3. Champagne
  4. Beer
Correct Answer: (2) Rum
View Solution

Rum typically contains a higher alcohol content, ranging from 40% to 60%, compared to wine (10-15%), champagne (12-14%), and beer (4-6%).

The distillation process increases the alcohol concentration in rum, making it stronger than fermented beverages like wine and beer.

Question 74:

Match List-I with List-II:

List-I (Scientific Name):
(A) Ricinus communis
(B) Croton tiglium
(C) Semecarpus anacardium
(D) Capsicum annuum

List-II (Vegetable Poison):
(I) Jamalgota
(II) Dhobis nut
(III) Lal mirch
(IV) Arandi

  1. (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
  2. (A) - (IV), (B) - (I), (C) - (III), (D) - (II)
  3. (A) - (I), (B) - (III), (C) - (IV), (D) - (I)
  4. (A) - (III), (B) - (IV), (C) - (I), (D) - (II)
Correct Answer: (2) (A) - (IV), (B) - (I), (C) - (II), (D) - (III)
View Solution

The scientific names correspond to specific poisons: Ricinus communis (Arandi), Croton tiglium (Jamalgota), Semecarpus anacardium (Dhobis nut), and Capsicum annuum (Lal mirch).

These plants and their toxic properties are crucial for toxicological investigations in forensic cases.

Question 75:

Match the following with their active principle component:

List-I (Plant):
(A) Oleander
(B) Betel Nut
(C) Aconite
(D) Tobacco

List-II (Active Principle):
(I) Nerin
(II) Nicotine
(III) Arecoline
(IV) Pseudaconitine

  1. (A) - (I), (B) - (III), (C) - (IV), (D) - (II)
  2. (A) - (I), (B) - (II), (C) - (III), (D) - (IV)
  3. (A) - (I), (B) - (III), (C) - (IV), (D) - (II)
  4. (A) - (II), (B) - (IV), (C) - (I), (D) - (III)
Correct Answer: (3) (A) - (I), (B) - (III), (C) - (IV), (D) - (II)
View Solution

The active principle components are Oleander (Nerin), Betel Nut (Arecoline), Aconite (Pseudaconitine), and Tobacco (Nicotine).

Understanding the active principles of plants aids forensic toxicologists in identifying substances involved in poisoning cases.

*The article might have information for the previous academic years, please refer the official website of the exam.

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