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 1 to 25 with answers and explanations.
Please Note: You can also jump to various previous year’s question sections for MSc. Forensic Science, Delhi University Entrance Test (DUET).
Note: When preparing for Delhi University MSc. entrances, I strongly advise you to solve UGC NET Papers. Because it is seen that a good portion of the papers were from previous year’s UGC NET Forensic Science question papers. So, solve them to increase your chances of getting admission to Delhi University or any CUET PG exams.
1. A cognizable offense means
- Arrest without warrant
- Imprisonment up to one year
- Only fine can be imposed
- Imprisonment up to five years
Answer and Explanation
Answer: (1) Arrest without warrant
Explanation:
Cognizable offense offers police authorities to arrest without a warrant and to start an investigation with or without court permission.
2. Minimum age to be a witness in a court of law is
- Seven years
- Ten years
- Any year
- 15 years
Answer and Explanation
Answer: (3) Any year
Explanation:
Under Section 118 of the Indian Evidence Act, 1872, there is no minimum age for a witness. This doesn’t mean a 2 years immature child can be a witness. In those cases, the competency to be a witness need to be evaluated. For that, the judge has a direct interview with the child, usually in a closed courtroom.
3. Dying declaration ideally is to be recorded by
- Police
- Magistrate
- Medical officer
- Deputy Commissioner
Answer and Explanation
Answer: (2) Magistrate
Explanation:
A dying declaration should always be recorded by a Magistrate whenever possible. If a Magistrate is not available, the Police Officer should record the statement himself, preferably in the presence of witnesses, and obtain the declarant’s signature.
4. Summon is a document of the court
- Compelling attendance of a witness
- Guarantee money of witness
- Providing legal immunity to a witness
- That can be attended to within a year
Answer and Explanation
Answer: (1) Compelling attendance of a witness
Explanation:
In law, a summons (also called citations) is a document issued by a court that orders a specific person to appear at a specific time for a specific purpose. It is given either directly to the person or to a law enforcement officer who is responsible for carrying out the instructions.
5. Which of the following sections of IPC deals with criminal negligence?
- Section 302
- Section 304
- Section 304A
- Section 120
Answer and Explanation
Answer: (3) Section 304A
Explanation:
Criminal negligence refers to activities that cause the risk of serious bodily injuries or death to another individual. Eg: accidents cause death to an individual where the driver was in the influence of alcohol/drugs.
6. Most frequent sign of death due to antemortem hanging is
- Cyanosis of face and lips
- Ligature marks around the neck
- Protruding tongue
- Trickling of saliva, down the angle of the mouth
Answer and Explanation
Answer: (2) Ligature marks around the neck
Explanation:
Common signs of antemortem hanging: dipping of saliva, protruded tongue, fecal and urinary expulsion, no injuries, no defense wounds, and cyanosis sign in the face, lips, etc.
7. Molecular death means
- Complete and irreversible cessation of brain, heart, and lung functions
- Death of individual cells and tissues after somatic death
- Vital functions are at such a low pitch that cannot be detected by routine examination
- Total loss of EEG activity but heart is functioning
Answer and Explanation
Answer: (2) Death of individual cells and tissues after somatic death
Explanation:
Molecular deaths occur after the somatic death (brain stops functioning followed by cessation of heart and lung function) where cells and organs tissues undergo cessation.
8. In a child, the first permanent tooth to erupt is
- Central incisor
- First molar
- Canine
- Lateral incisor
Answer and Explanation
Answer: (2) First molar
Explanation:
-> First permanent tooth: First Molar: 6–7 years
-> First temporary tooth: Lower Central Incisor: 6–8 years
9. Greenhouse gases are
- Absorbers of long‐wave heat radiations from the earth
- Transparent to both solar radiations and long‐wave radiations from the earth
- Absorbers of solar radiation for warming the atmosphere of the earth
- Transparent to emissions from Earth for passage into outer space
Answer and Explanation
Answer: (1) Absorbers of long‐wave heat radiations from earth
Explanation:
Greenhouses gases absorb longwave infrared radiation, which heats the lower atmosphere and causes global warming.
10. Acromion process is characteristically found in the
- Pectoral girdle of mammals
- Sperm of mammals
- Pelvic girdle of mammals
- Skull of mammals
Answer and Explanation
Answer: (1) Pectoral girdle of mammals
Explanation:
Acromion process is a point of attachment for the deltoid muscles (thick triangular muscle covering the shoulder joint) in form of a bony part at the end of the shoulder.
11. Which statement about Mendel is true
- His principles of inheritance were generally accepted at his time
- He discovered linkage
- He believed that genetic traits of parents will generally blend in their children
- His principles about genetics apply usually to both animals and plants
Answer and Explanation
Answer: (4) His principles about genetics apply usually to both animals and plants
Explanation:
There are three Mendel laws of inheritances:
-> 1st law is Law of Dominance: hybrid offspring will only inherit the dominant trait in the phenotype.
-> 2nd law is Law of Independent Assortment: inheritance of one pair of genes is independent of inheritance of another pair.
-> 3rd law is Law of Segregation: two copies of each hereditary factor segregate from each parent to their offspring.
12. In human genome
A. Junk DNA is abundant
B. Less than 2% of genome codes for proteins
C. Total number of genes is about 200,000
D. Least number of genes are present on Y chromosome
Choose the correct answer from the options given below:
- A, B and D only
- A, B and C only
- B, C and D only
- B and C only
Answer and Explanation
Answer: (1) A, B and D only
Explanation:
-> Human genome contains over 3 billion nucleotide pairs.
-> Human genome estimated to have about 30,000 genes.
13. An isolated population with equal number of blue‐eyed and brown‐eyed individuals was decimated by the earthquake. Only a few blue‐eyed individuals survived to form the next generation. The change in the gene pool is
- Hardy‐Weinberg equilibrium
- Blocked gene flow
- Founder effect
- Bottleneck effect
Answer and Explanation
Answer: (4) Bottleneck effect
Explanation:
-> Bottleneck effect (population bottleneck): genetic drift that happens when the size of a population is severely reduced.
-> Blocked gene flow (Allopatric speciation): when two populations of the same species become isolated from each other due to geographic changes and evolution resulting in the development of two separate species.
-> Founder effect: loss of genetic variation that results when a small subset of a large population is used to establish a new colony.
-> Hardy‐Weinberg equilibrium: states that in the absence of disturbing factors, genetic variation in a population will remain constant from generation to generation
14. Greater trochanter is present in
- Fibula
- Skull
- Femur
- Tibia
Answer and Explanation
Answer: (3) Femur
Explanation:
The funtion of greater trochanter in femur is to hold five different muscles such as gluteus medius and minimus, piriformis, obturator internus and externus, and gemelli muscles.
15. Diastema is present on the
- Tooth
- Fibula
- Dental Arch
- Femur
Answer and Explanation
Answer: (3) Dental arch
Explanation:
Diastema is a dental arch or space between teeth and is most commonly seen in between the incisors and molars. Widely seen in children and less in adults.
16. Which of the following is a monosaccharide?
- Fructose
- Sucrose
- Matose
- Lactose
Answer and Explanation
Answer: (1) Fructose
Explanation:
Monosaccharides are called to be simple sugar because these carbohydrate molecules can’t be broken down by hydrolysis into simpler (smaller) molecules. Eg: Glucose, fructose, and galactose
17. A long straight chain of glucose units twisted into a helical coil is
- Amylose
- Cotton fibre
- Amylopectin
- Jute fibre
Answer and Explanation
Answer: (1) Amylopectin
Explanation:
-> Amylopectin is a branched polymer of α-glucose units and 80% is found in starch.
-> Amylose is a straight-chain polymer of D-glucose units and shares 20% in starch.
18. A man with type A blood group marries a woman with type AB blood group. What are the different blood groups of their children could have?
- A only
- AB only
- A and AB only
- A, B, and AB
Answer and Explanation
Answer: (4) A, B and AB
Explanation:
-> Possible phenotype blood group for AxAB are: A, B, AB.
-> Impossible phenotype blood group for AxAb is O.
Check the Full table on the possible phenotypes for various blood group compositions: [Table] Blood Group (ABO & MN) in Disputed Paternity & Maternity.
19. A stain can presumptively be identified as blood by the
- Barberio test
- Leocomalachite green test
- Amylase test
- Acid phosphatase test
Answer and Explanation
Answer: (2) Leocomalachite green test
Explanation:
Leucomalachite green presumptive catalytic test for blood, based on the peroxidase-like activity of hemoglobin that produce blue-green colored product from reduced leucomalachite green reagent.
20. The term ‘Metabolome’ refers to the
- Total genetic content
- Total protein content
- Total small molecule content
- Total enzyme content
Answer and Explanation
Answer: (3) Total small molecule content
Explanation:
Metabolome refers to the complete set of small-molecule chemicals found within a biological sample. And their study is called metabolomics.
21. The DNA restriction enzymes were discovered by
- Hamilton Smith & Daniel Nathans
- Watson & Crick
- Stephen Gould & Niles Eldredge
- Manfred Eigen & Manfred Sumper
Answer and Explanation
Answer: (1) Hamilton Smith & Daniel Nathans
Explanation:
Discoverer of Restriction enzymes were molecular biologists Werner Arber, Hamilton O. Smith, and Daniel Nathans in the late 1960s.
22. The first rapid DNA sequencing technique with dideoxynucleotides and gel electrophoresis was described by
- Hamilton Smith & Daniel Nathans
- Walter Gilbert & Allan Maxam
- Federick Sanger & Alan Coulson
- Manfred Eigen & Manfred Sumper
Answer and Explanation
Answer: (3) Federick Sanger & Alan Coulson
Explanation:
-> Dr. Frederick Sanger discover the rapid DNA sequencing technique with dideoxynucleotides and gel electrophoresis in 1977. It is also called Sanger sequencing.
23. The ‘one‐gene‐one‐enzyme’ hypothesis was put forth by
- Archibald Garrod
- Willard Gibbs J
- Antoine Lavoisier
- Beadle & Tatum
Answer and Explanation
Answer: (4) Beadle & Tatum
Explanation:
-> George Beadle and Edward Tatum proposed the hypothesis of one-gene-one-enzyme. According to it, genes functions by producing enzymes where each gene is responsible for producing a single enzyme.
-> The one-gene-one-enzyme hypothesis later proved to be incorrect because some genes code produces proteins such as collagen or elastin, which are not enzymes.
-> Correct term to describe this is “one gene, one polypeptide”
24. An enzyme without a cofactor is referred to as
- Holoenzyme
- Zymogen
- Apoenzyme
- Co‐enzyme
Answer and Explanation
Answer: (3) Apoenzyme
Explanation:
-> Cofactor (helper molecule): non-protein chemical compound or metallic ion, help enzymes to catalyze reactions. Eg: Vit. C
-> Apoenzyme: Enzyme protein component that is inactive and not bound to the cofactor.
-> Holoenzyme: Enzyme protein component that bound with cofactor and creates an active form of the enzyme.
-> Coenzyme: substances that enhance the action of an enzyme.
25. The colour of bilirubin is
- Orange
- Yellow
- Green
- Red
Answer and Explanation
Answer: (2) Yellow
Explanation:
Bilirubin is a yellow chemical in hemoglobin. And when dead RBCs break down in the liver, they cause yellow pigmentation.
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