We have listed all the questions that were asked in the entrance exam for 2021 MSc. Forensic Science, Delhi University along with answer key and explanation. This section listed solved questions from 76 to 100 with answers and explanations.
Please Note: You can also jump to various previous year’s question sections for MSc. Forensic Science CUET PG Exams, and Delhi University Entrance Test (DUET).
76. A device with two photoelectric detectors for measuring the velocity of bullets in forensic science is called
- Chronograph
- Speedometer
- Velocity Sensors
- Velocity Meter
Answer and Explanation
Answer: (1) Chronograph
Explanation:
-> A ballistic chronograph (also known as a gun chronograph) is a device that measures the velocity of a projectile in flight, typically fired from a gun.
77. The Pubic symphysis in males when compared with females is
- Broader and more triangular
- Narrower and more rectangular
- Broader and more rectangular
- Narrower and more triangular
Answer and Explanation
Answer: (1) Broader and more triangular
Explanation:
Please Note: Changes in pubic symphysis are seen from the age of 18 years onwards and considered as one of the best methods for the age estimation of a dead individual from 30 to 50 years.
78. The female cranium in comparison to the male is
- Smaller with more retreating forehead and more pronounced supra orbital
- Larger with more retreating forehead and more pronounced supra orbital ridges
- Smaller with more rounded forehead and less pronounced supra orbital ridges
- Larger with more rounded forehead and less pronounced supra orbital ridges
Answer
Answer: (3) Smaller with more rounded forehead and less pronounced supraorbital ridges
79. ______________ evidence will establish a fact or sustain a judgment unless contradictory evidence is produced.
- Presumptive
- Probative
- Prima facie
- Rebuttal
Answer and Explanation
Answer: (3) Prima Facie
Explanation:
-> Prima facie evidence refers to the evidence whose existence is questionable but at the same time, it establishes a fact.
Example: Person ‘X’ walks to a crime scene and sees a Person ‘Y’ has a gun and a lady is unconscious on the floor. At first, it looks like Person ‘Y’ shoots the lady just because of the circumstances.
80. Type B blood contains type ___ antigen
- A,B
- A
- B
- None
Answer and Explanation
Answer: (3) B
Explanation:
-> Blood group A: antigen A, and anti-B antibodies
-> Blood group B: antigen B, and anti-A antibodies
-> Blood group O: NO antigens, but both anti-A and anti-B antibodies
-> Blood group AB: – has both A and B antigens, but no antibodies.
81. A fingerprint that is not visible to the unaided eye and must be developed or visualized using chemical or physical methods is
- Plastic fingerprint
- Latent fingerprint
- Patent fingerprint
- DNA fingerprint
Answer
Answer: (2) Latent Fingerprint
82. An internal and external investigation of a body after death to determine the cause and manner of death is
- Biopsy
- Bioscopy
- Laparoscopy
- Autopsy
Answer and Explanation
Answer: (4) Autopsy
Explanation:
-> Biopsy: a small amount of tissue is removed for examination, typically for illness.
-> Bioscopy: a medical examination of a body to discover whether an individual is alive or not.
–> Laparoscopy: a surgical diagnostic procedure to examine internal organs using fiber-optic instruments through the abdominal wall.
83. A bloodstain involving a force in addition to gravity showing directionality and specific distribution patterns is called
- Spatter bloodstains
- Passive bloodstain
- Cast‐off bloodstain
- Transfer bloodstain
Answer
Answer: (1) Spatter Bloodstains
84. In DNA analysis, what is the acronym for RFLP?
- Restraint fragment length polymorphism
- Restraint fragment long polymorphism
- Restriction fragment length polymorphism
- Restriction fragment long polymorphism
Answer
Answer: (3) Restriction fragment length polymorphism
Explanation:
-> Botstein et al. (1980) developed RFLP, which uses restriction enzymes to cut the DNA molecule at specific sites known as restriction sites, resulting in different fragments of varying lengths.
85. Evidence that is inadmissible because it was directly or indirectly obtained by illegal means is
- Tainted evidence
- Incriminating evidence
- Derivative evidence
- Hearsay
Answer and Explanation
Answer: (1) Tainted evidence
Explanation:
-> Incriminating evidence: make someone seem guilty or implicate someone in wrongdoing. Eg: a robber incriminates his friend by telling police he takes help from his friend.
-> Derivate evidence: a material having originated from the original evidence. Eg: amplified DNA.
-> Hearsay: an out-of-court statement made by someone other than the witness reporting it.
86. The human skeleton consist of_______ bones
- 206
- 207
- 208
- 209
Answer
Answer: (1) 206
87. If a person inherits the same form of a gene from the mother and the father, that person is said to be
- Homozygous
- Heterozygous
- Recessive
- Dominant
Answer and Explanation
Answer: (1) Homozygous
Explanation:
-> Homozygous: two identical alleles at a locus
-> Heterozygous: two different alleles at a locus
-> Hemizygous: if one allele is missing
88. There are approximately 3 billion base pairs in the human genome and less than ____ of these differ from person to person.
- 0.5%
- 1%
- 5%
- 2%
Answer
Answer: (2) 1%
89. A phenomenon whereby the body’s organ systems adapt to the continuous presence of drugs that an ever‐increasing dose is required to achieve an equivalent psychoactive effect.
- Chemical tolerance
- Chemical intolerance
- Chemical resistance
- Chemical dependence
Answer and Explanation
Answer: (1) Chemical tolerance
Explanation:
No explanation is required for this previous year’s question of the DU entrance exam of 2021.
90. A type of atomic spectroscopy whereby an element is heated and then the wavelengths of light emitted by the sample are measured and the elements identified
- Atomic absorption spectroscopy
- Atomic emission spectroscopy
- Attenuated total reflectance
- Reflectance spectroscopy
Answer and Explanation
Answer: (2) Atomic emission spectroscopy
Explanation:
-> Attenuated Total Reflection (ATR): is a sampling technique used in conjunction with infrared spectroscopy to examine samples directly in the solid or liquid state without further preparation.
91. In pharmacology, a condition whereby the effects of two or more drugs are magnified when taken together beyond their singular effects is known as
- Mutuality
- Synergism
- Reciprocity
- Symbiosis
Answer and Explanation
Answer: (2) Synergism
Explanation:
Synergism is an effect that is seen when two or more substances combine to create an effect that is greater than either one of them could have manifested by itself. For example, the “synergistic effect” happens when you drink alcohol and ingest some kind of drug, in this case, dhatura. The combination of drugs and alcohol will increase the effects of alcohol on the body.
92. ABO blood groups were discovered by
- E. B. Ford
- Arthur Mourant
- Karl Landsteiner
- Gregor Mendel
Answer and Explanation
Answer: (3) Karl Landsteiner
Explanation:
Landsteiner in 1901 discovered ABO blood groups.
93. The most frequent finger pattern found in human populations is
- Arches
- Loops
- Whorls
- Plain Arch
Answer and Explanation
Answer: (2) Loops
Explanation:
-> Most common fingerprints are Loop with 60 to 65% of a finger in the world.
-> Second most common is Whorl with 30 to 35% of fingers
-> 3rd common prints are Arches with 5% or less.
94. The type of ribonucleic acid that is used in the cell to copy the DNA code for use in protein synthesis is the
- tRNA
- rRNA
- mRNA
- snRNA
Answer and Explanation
Answer: (3) mRNA
Explanation:
Juusola and Ballantyne (2003) isolated mRNA from blood, semen, and saliva stains and used it for RT-PCR analysis. Specifically to saliva, they study saliva-specific genes such as statherin, histatin 3, PRB1, PRB2, and PRB3.
95. In craniometric measurements the most projecting point on the root of the nose above the frontonasal suture and between the supra‐orbital ridges in the mid‐sagittal plane is
- Glabella
- Nasion
- Gonion
- Prosthion
Answer
Answer: (1) Glabella
96. The DNA fingerprinting techniques was first used for studying DNA polymorphisms for socio‐legal applications by
- Fred Sanger
- Alec Jeffreys
- Kary B. Mullis
- James Gusella
Answer and Explanation
Answer: (2) Alec Jeffreys
Explanation:
-> Sir Alec John Jeffreys, a British geneticist develops techniques of genetic fingerprinting and DNA profiling.
-> Widely used for identification and paternity cases.
97. The ABO blood group in humans is determined by
- Multiple alleles
- Linked genes
- Incomplete dominance
- Epistatic genes
Answer and Explanation
Answer: (1) Multiple Alleles
Explanation:
-> Human blood group system is the example of co-dominance and multiple alleles
-> Human blood group is controlled by 3 alleles: IA, IB, IO
-> IA produces antigen A, IB produces antigen B, IO produces any antigen, and IA and IB produce antigen AB.
98. The phenomenon of differential gene expression depending on the inheritance from the maternal or paternal genome is called
- Epistasis
- Gene interactions
- Sex linked inheritance
- Genomic imprinting
Answer and Explanation
Answer: (4) Genomic imprinting
Explanation:
-> Epistasis: Interaction of genes that are not alleles, in particular the suppression of the effect of one such gene by another. Eg: A gene for total baldness would be epistatic to one for blond hair resulting in a baldness phenotype that supersedes genes for hair color, and so the effects are non-additive.
99. The meeting point of coronal and sagittal sutures is known as
- Pterion
- Bregma
- Basion
- Lambda
Answer and Explanation
Answer: (2) Bregma
Explanation:
-> Pterion: H-shaped formation of sutures, junction with four skull bones: greater wing of the sphenoid bone. squamous portion of the temporal bone. frontal bone. parietal bone.
-> Basion: midline point on anterior margin of the foramen magnum.
-> Lambda: midline bony part where the lambdoid sutures and sagittal suture meet.
100. Anterior Fontanelle closes at the age
- 1.5‐ 2 years
- 4‐5 years
- 8‐9 years
- 10‐11 years
Answer and Explanation
Answer: (1) 1.5-2 years
Explanation:
-> Posterior fontanelle: closes by age 1 or 2 month
-> Anterior fontanelle: closes sometime between 9 and 18 months.
Jump to Solved Previous Year Delhi University Entrance Test For MSc. Forensic Science