CSIR NET Life Sciences Question Paper December 2023 Shift 1, 2 (Available)

CSIR NET Life Sciences Question Paper December 2023 (Image Credit: Pexels)

CSIR NET Life Sciences Question Paper December 2023: The CSIR NET Life Sciences (Subject Code: 703) examination for the December session is being conducted today, December 26, 2023, in two shifts. Since CSIR NET 2023 is a computer-based exam, hence, a copy of the question paper is not readily available. Nonetheless, for the reference and prediction of exam scores, the memory-based CSIR NET Life Sciences Question Paper December 2023 has been provided.

Also Read | CSIR NET Question Paper and Answer Key December 2023

A total of 145 questions will be asked, out of which candidates had to answer 75 questions. Once the shifts are concluded, CSIR NET Life Sciences December 2023 memory-based questions for the shifts will be added here. In CSIR NET Life Sciences Question Paper December 2023, two marks will be awarded for every correct answer in Part A and B, and 4 marks in Part C. A negative marking of 25% for incorrect answers will be made in Part A, B & C.

CSIR NET Life Sciences Question Paper December 2023 Shift 1

Find memory-based questions for CSIR NET Life Sciences 2023 December Shift 1 examination below. 

1. Which of the following helps in pinching of an endocytic vesicle at a neutral junction?
2. Which of the following enzymes is not used in Krebs' cycle?
3. What is the precursor of amino acid in Methionine?
4. What is Silver Diamine Fluoride used for? 
5. A protein segment contains
   1. an alpha helix
   2. Disrupted helix and
   3. beta sheet.
   If the total length of each protein segment is approximately 300 amino acids, what would be its estimated length in angstroms?

Also Read | 

6. In a cation exchange chromatography experiment, a mixture containing three different peptides is passed through a cation exchange column. The peptides are:
   A) Ala-Asp-Glu
   B) Ser-Arg-Arg
   C) Gly-Ser-Arg
   Considering the amino acid composition of these peptides, which of the following best describes the expected elution order of these peptides from the column?
7. Chymotrypsin digestion of a pentapeptide produced a dipeptide and a tripeptide. CNBr cleavage of the same pentapeptide yielded a tripeptide and a dipeptide. Trypsin does not produce any fragment.
   Which of the following sequence fits the pentatapeptide?
8. Glycolysis is inhibited by which of the following inhibitor
   1. Glucose 6 P
   2. Citrate
   3. cAMP
   4. ATP
   5. ADP
9. NAD is not reduced by
   1. Pyruvate dehydrogenase
   2. Succinate dehydrogenase
   3. Malate dehydrogenase
   4. Alpha ketoglutarate dehydrogenase
10. pH of endocytic vesicle is 5.2 and stomach is 2. Difference between number of H⁺ ions
    1. 1585 times lower in vesicle than stomach
    2. 1585 times lower in stomach than Vesicle
    3. 15.85 times lower in stomach than vesicle.
    4. 15.85 times lower in vesicle than stomach.
11. What the ratio of Vo/Vmax of enzyme catalysing reaction having [S]=3km & [S]=9km
12. mRNA strand
    CCGGCCCGGGCCC
    Antisense Strand Sense strand
    Which form will be formed?
    Z-DNA, B-DNA, or A-DNA?
13. Fermentation that occurs in the anaerobic conditions. In respect to this process, some statements are given below:
    a. Generation of NADPH to trigger glycolysis
    b. Production of NAD+ to stimulate glycolysis
    Which statement is correct?
14. Smallest phase of cell cycle?
15. Which one of the following inhibits polymerization of G actin?
16. Match the organelles with subcellular markers.
    Column I
    1.lysosome
    2.Cytoplasm
    3.Peroxisome
    Column II
    a. Lactate dehydrogenase
    b. Acid phosphatase
    c. Catalase
17. Which one of the following statement about lines present in the human genome is true?
    1. Lines preferentially localize to at AT-rich DNA
    2. lines cannot transpose independently
    3. By parasitising on the SINE element transposition machinery the can move
    4. The alu family is most important LINE
18. Porins are present on outer membrane of mitochondria Choose correct statement..
    1. Synthesized on ER membrane and transported to mitochondria through clathrin coated vesicle.
    2. Synthesized on mitochondrial membrane
    3. Synthesized in cytosol and transferred through TOM to the outermembrane
    4. Synthesized in cytosol and transferred through TIM
19. n a typical eukaryotic cell, euchromatin and heterochromatin are two forms of chromatin that differ in the degree of condensation and function. Based on their typical localization within the cell nucleus, which of the following statements is most accurate?
    1. Euchromatin is predominantly located toward the periphery of the nucleus, while heterochromatin is found closer to the center.
    2. Euchromatin and heterochromatin are randomly distributed throughout the nucleus without any specific localization.
    3. Heterochromatin is predominantly located toward the periphery of the nucleus, while euchromatin is foun closer to the center.
    4. Both euchromatin and heterochromatin are evenly distributed along the periphery and center of the nucleus.
20. Match the following.
    Column I
    1. Lysosome
    2. Mitochondria
    3. Peroxisome
    Column II
    a. N terminal
    b. terminal SKL
    c. mannose 6 p
21. An enzyme is forming replication bubble and other is leading decrease in overwinding at replication fork. Choose the correct combination.
22. E coli RNA polymerase. Choose the correct statement
    1. Does not require primers for synthesis.
    2. Has high fidelity and proof reading activity.
    3. RNA polymerase Il code rRNA
23. Apoptosis intrinsic pathway
24. Plasma membrane proteins
25. Catherine-mediated endocytosis
26. Multiple questions were asked from ecology and evolution
27. Cation and peptide charge
28. Plant hormones and their precursors
29. Double fertilization
30. Peptide charge + chromatography
31. Photorespiration
32. PET scan
33. DNA replication
34. ELISA or ELISpot

Also Read |

CSIR NET Life Sciences Question Paper December 2023 Shift 2

Find memory-based questions for CSIR NET Life Sciences 2023 December Shift 2 examination below. 

1. Grazing food chain will get its Max NPP from which of the following?
2. What is the precursor of Jasmonic acid?
3. A pedigree with a generation skip along with a marker analysis.... Marker was codominant for sure and other options were variable expressivity... Dominant and chances of passing disease by 5 were 25%.
4. Learning is
   1) habitual
   2) Experimental
   Which one is a not a learning?
   1. Imprinting
   2. Concordance
   3. Habituation
   4. operant learning
5. Sedimentation coefficient of freshly extracted protein was 1.83 left for 2 days and now it's 2.4.. what could be possible reason
   1. formed octamer
   2. homodimer
   3. bound with buffer molecules
   4. degraded
6. TRNA what is charged and what interacts with mRNA
   1. 3' end D loop
   2. 5' end t loop
   3. 3' end anticodon loop
7. X had a diagram it was codominant and y was dominant other options were vice versa and X can be SSR and Y RAPD.
8. Developmental Biology: Commitment is completed in?
9. Which of the following doesn't accumulate in biomagnefication?
   A) mercury
   B) phosphate
   C) POPs
   D) arsenic
10. There's a protein Z which is in pellet and X and Y soluble when cell disrupted. Why Z is integral membrane protein and XY peripheral?
11. Which is an abundant antibody?
12. Population with K =20000 and r= 0.15. What is the maximum growth?
13. Scientific name of ragi, bajra, jowar
14. Which of the classes of vertebrate are more threatened to extinct?
    1. Reptiles
    2. Birds
    3. Mammals
    4. Amphibians
15. Energy gain from food 1000 KJ, out of which 500 KJ lost as faeces, 350 KJ respiration, 150 KJ growth, then what is the efficiency?
16. Which mRNA can leave nucleus
    1) Spliced capped tailed
    2) unspliced tailed capped
    3) uncapped spliced tailed
17. There was a question on GPCR related to GEF activity subunit.
    1. g alpha Is it membrane bound subunit
    2. g alpha not membrane bound
    3. in active state guanine nuclear exchanger
18. Polyribisome was given a diagram and systems mentioned ribosome close of 3' end is nearest to translation start side 2 translation began along with transcription.
19. One question was on Dna polymerase 3, it shows activity on where 4 diagrams were drawn. Find out the correct one.
20. A question was on tumor supressors vs oncogens.
21. Set of events were mentioned which happens during cytotoxic immune response.. engulfment proteosomal degradation of engulfed material
    1) binding of peptide to mhc in golgi
    2) recognition by c cytotoxic cell
    Assembly of mhc alpha chain and b2 micronglobulin
22. Pleural fluid volume in normal condition Bicoid is injected at different positions of bicoid mutant and wild type. Select the correct structure formation for codominant and dominant markers.
23. Which of the following doesn't accumulate in biomagnification
24. Population k=20000and r=1.5what is the maximum growth
25. What is the classes of vertebrates are more threaten to extinct
26. Which antibody are there in early stages

CSIR NET December 2023 Important Links

Candidates can click on the link below to access all the important links related to CSIR NET December 2023 session:

Stay tuned to CollegeDekho for more Education News pertaining to Science News. You can also write to us at our E-Mail ID news@collegedekho.com.