Organisation : Human Resource Development Group Council of Scientific & Industrial Research
Exam : CSIR UGC NET Exam
Paper : Life Sciences
Year : 2016
Document Type : Model Question Paper
Website : https://www.csirhrdg.res.in/
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Life Sciences A : https://www.pdfquestion.in/uploads/8705-lifeA.pdf
Life Sciences B : https://www.pdfquestion.in/uploads/8705-lifeB.pdf
Life Sciences C : https://www.pdfquestion.in/uploads/8705-lifeC.pdf
CSIR UGC NET Exam Life Sciences Model Question Paper 2016 :
Part ‘A’ :
1. “My friend Raju has more than 1000 books”, said Ram. “Oh no, he has less than 1000 books”, said Shyam. “Well, Raju certainly has at least one book”, said Geeta. If only one of these statements is true, how many books does Raju have?
Related : CSIR UGC NET Exam Earth Sciences Model Question Paper 2016 : www.pdfquestion.in/8702.html
1. 1
2. 1000
3. 999
4. 1001
2. Of the following, which is the odd one out?
1. Cone
2. Torus
3. Sphere
4. Ellipsoid
3. What is the minimum number of moves required to transform figure 1 to figure 2? A move is defined as removing a coin and placing it such that it touches two other coins in its new position.
1. 1
2. 2
3. 3
4. 4
4. Which of the following inferences can be drawn from the above graph?
1. The total number of students qualifying in Physics in 2015 and 2014 is the same
2. The number of students qualifying in Biology in 2015 is less than that in 2013
3. The number of Chemistry students qualifying in 2015 must be more than the number of students who qualified in Biology in 2014
4. The number of students qualifying in Physics in 2015 is equal to the number of students in Biology that qualified in 2014
5. A student appearing for an exam is declared to have failed the exam if his/her score is less than half the median score. This implies
1. 1/4 of the students appearing for the exam always fail.
2. if a student scores less than 1/4 of the maximum score, he/she always fails.
3. if a student scores more than 1/2 of the maximum score, he/she always passes.
4. it is possible that no one fails.
6. Which of the following statements is logically incorrect?
1. I always speak the truth
2. I occasionally lie
3. I occasionally speak the truth
4. I always lie
7. The relationship among the numbers in each corner square is the same as that in the other corner squares. Find the missing number.
1. 10
2. 8
3. 6
4. 12
8. Fill in the blank F2, _____, D8, C16, B32, A64.
1. C4
2. E4
3. C2
4. G16
9. How many times starting at 1:00 pm would the minute and hour hands of a clock make an angle of 40? with each other in the next 6 hours?
1. 6
2. 7
3. 11
4. 12
10. Brothers Santa and Chris walk to school from their house. The former takes 40 minutes while the latter, 30 minutes. One day Santa started 5 minutes earlier than Chris. In how many minutes would Chris overtake Santa?
1. 5
2. 15
3. 20
4. 25
PART ‘B’ :
11. Which of the following is NOT true for cholesterol metabolism?
1. HMG-CoA reductase is the key regulator of cholesterol biosynthesis.
2. Biosynthesis takes place in the cytoplasm.
3. Reduction reactions use NADH as cofactor.
4. Cholesterol is transported by LDL in plasma.
12. The solubility of gases in water depends on their interaction with water molecules. Four gases i.e. carbon dioxide, oxygen, sulphur dioxide and ammonia are dissolved in water. In terms of their solubility which of the following statements is correct?
1. Ammonia > Oxygen > Sulphur dioxide > Carbon dioxide
2. Oxygen > Carbon dioxide > Sulphur dioxide > Ammonia
3. Sulphur dioxide > Oxygen > Ammonia > Carbon dioxide
4. Ammonia > Sulphur dioxide > Carbon dioxide > Oxygen
13. Entry of enveloped viruses into its host cells is mediated by:
1. Only endocytosis
2. Both endocytosis and phagocytosis
3. Both endocytosis and membrane fusion
4. Only pinocytosis
14. E.coli is being grown in a medium containing both glucose and lactose. On depletion of glucose, expression of ?-galactoside will
1. remain unchanged
2. increase
3. decrease
4. initially decrease and then increase
15. Error-free repair of double strand breaks in DNA is accomplished by
1. non-homologous end-joining.
2. base excision repair.
3. homologous recombination.
4. mismatch repair.
16. Histone deacytalase (HDAC) catalyses the removal of acetyl group from N-terminal of histones. Which amino acid of histone is involved in this process?
1. Lysine 2. Arginine
3. Asparagine 4. Histidine
17. Predominant interactions between phospholipids that stabilize a biological membrane include
1. hydrogen bonds and covalent interactions.
2. van der Waal and ionic interactions.
3. hydrophobic interactions and hydrogen bonding.
4. covalent and hydrophobic interactions.
18. Lateral diffusion of proteins in membrane can be followed and diffusion rate calculated by
1. Atomic force microscopy
2. Scanning electron microscopy
3. Transmission electron microscopy
4. FRAP
19. Labelling of membrane spanning domain of any integral membrane protein in a given plasma membrane vesicle (without disrupting its structure) is successfully carried out by
1. immunochemical methods.
2. metabolic labelling with radioisotopes.
3. hydrophobic photoaffinity labelling.
4. limited proteolysis followed by metabolic labelling.
20.Which one of the following statements about receptor – enzyme is FALSE?
1. A receptor – enzyme has an extracellular ligand binding domain, a transmembrane domain and an intracellular catalytic (enzyme) domain.
2. Many types of receptor enzymes are found in animals.
3. The signal transduction pathways of receptor – enzyme involve phosphorylation cascades.
4. Receptor – enzymes interact directly with intracellular G-proteins.