Free Net Life Science Study Materials

NET Life Science June 2016 Model Question Paper Set- 5


net june 2016 solved paper

(1). Active site of all serine proteases consists of

a.       Ser-Glu-Asp
b.      Ser-Glu-Met
c.       Ser-His-Asp
d.      Ala-Glu-Met

(2). Which of the following properties is common to all cytoskeletal motor proteins like kinesisn, dyneins and myosins?

a.       GTPase activity
b.      ATPase activity
c.       Actin binding domain
d.      DNA binding domain

(3). Which of the following antibiotics attaches to 50S ribosome and inhibits peptidyl-transferase activity

a.       Penicillin
b.      Chloramphenicol
c.       Trimethoprim
d.      Amphotericin

(4). Increased genetic diversity following extended time in a tissue culture is a problem called

a.       Gene alternation
b.      Temporal modification
c.       Somaclonal variation
d.      Cultural shock

(5). To protrude plants that are homozygous for all traits, the best choice is

a.       Cell suspension culture
b.      Callus culture
c.       Anther/pollen culture
d.      Plant organ culture

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mcq biology

MCQ on Cell Membrane Structure and Function with Answer Key Part 2


Cytology MCQ-03

mcq on plasma membrane

Practice Questions on Plasma Membrane: Structure & Functions Part-2

 (Sample/Model/Practice Questions for CSIR JRF/NET Life Science Examination, ICMR JRF Exam, DBT BET JRF Exam,, GATE BT and XL Exam, ICAR JRF NE Exam, PG Entrance Exam, JAM Exam, GS Biology Exam and Medical Entrance Exam)

(1). The cleavage of spectrin network in the cell by the proteolytic enzyme calpane indicate:

A.      Apoptosis of cell
B.      Necrosis of cell
C.      Cellular inflammation
D.     Phagocytosis by macrophages

(2). At physiological conditions, cholesterol in the plasma membrane:

A.      Increase the durability of plasma membrane
B.      Increase the permeability of plasma membrane
C.      Decrease the durability of plasma membrane
D.     Decrease the permeability of plasma membrane

A.      A, B
B.      A, C
C.      A, D
D.     B, D

(3). The molecular basis of MN blood group in human is

A.      Difference in the amino acid sequence in the Glycophorin
B.      Difference in the carbohydrate sequence in Glycophorin
C.      Difference in folding pattern of Glycophorin
D.     Difference in the distributional pattern of band 3 and glycophorin proteins in the plasma membrane of RBC

(4). Which of the following type of movement is least possible for a phospholipid in the plasma membrane?

A.      Flexion
B.      Rotation
C.      Lateral diffusion
D.     Flip-flop

(5). Spectrin-ankyrin network of plasma membrane is essential for all features of bio-membrane except:

A.      Anchoring specific ion channels in the plasma membrane
B.      Anchoring specific ion exchangers in the plasma membrane
C.      Anchoring specific ion transporters in the plasma membrane
D.     Anchoring Fo particle of ATP synthase in the plasma membrane

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Free Net Life Science Study Materials

CSIR NET Question Paper Model (June 2016) Examination Part 4 with Answers & Explanations


net life science model question paper june 2016

Synthetic Herbicide Mechanism of Action

CSIR JRF NET Life Science Exam June 2016: Model (sample) Question Paper Set 4

(1). In pET expression vectors, high level of expression of cloned gene is achieved using

a.       T7 promoter
b.      SP6 promoter
c.       Λ-PL promoter
d.      Trp promoter

(2). Archaea is considered as a separate group from bacteria and eukaryotes, based on

a.       Genome sequence
b.      16S rRNA gene sequence
c.       23S rRNA gene sequence
d.      EFTu sequence

(3). A hybrid between species following by polyploidy or chromosome doubling is known as

a.       Auto-polyploidy
b.      Aneuploidy
c.       Haploid
d.      Allopolyploid

(4). The herbicide that kills plants by blocking the photosynthetic electron flow of photosystem-I is

a.       Diuron
b.      Paraquat
c.       Glyphosate
d.      Atrazine

(5). In submerged plants the root tip stimulates the activity of

a.       ACC synthase
b.      ACC oxidase
c.       ACC synthase and ACC oxidase
d.      ACC kinase

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Free Net Life Science Study Materials

NET Life Sciences June 2016 Model Test Questions with Answer Key Part 3 (CSIR NET MCQ 05)


NET Life Sciences June 2016

CSIR JRF NET Life Sciences June 2016
CSIR NET Model Questions Part 5 (CSIR MCQ – 05)
Biology MCQ (Multiple Choice Questions in Life Science)
(Sample/Model/Practice Questions for JRF/NET Life Science Examination, ICMR JRF, DBT JRF, GATE, ICAR NET, PG Entrance)


1. If offspring of heterozygous parents (Aa at a single locus) are 25 percent AA, 50 percent Aa and 25 percent aa, then all of the following are true except:

a.       The parents are diploid organisms
b.      The allele is recessive lethal
c.       The alleles assort independently
d.      The gametes combine at random

2. A honey bee colony consists of:

a.       Equal number of males and females with all able to reproduce
b.      Mostly males, with only a single male being able to reproduce
c.       Mostly females, with only a single female being able to reproduce
d.      Equal number of males and females, with none able to reproduce sexually

3. Carbon sequestration refers to:

a.       The sale of carbon credits in the international market
b.      The process of capture and long-term storage of atmospheric oxygen
c.       The release of carbon, as CO2, into the atmosphere
d.      The accumulation of carbon in the atmosphere

4. The reason for the melting of DNA double helix at specific temperature is:

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Free Net Life Science Study Materials

CSIR NET Life Sciences Exam June 2016 Model Questions with Answer Key Part 2 (CSIR NET MCQ 04)


net practice test june december 2016

CSIR JRF NET Life Sciences June 2016
CSIR NET Model Questions Part 4 (CSIR NET MCQ – 04)
Biology MCQ (Multiple Choice Questions in Life Science)
(Sample/Model/Practice Questions for JRF/NET Life Science Examination, ICMR JRF, DBT JRF, GATE, ICAR NET, PG Entrance)


1. Bergmann’s rule refers to a general tendency of mammals to be

a. Large in size in colder areas of their distribution
b. Smaller in size in areas of their distribution
c. Darker-pigmented in warmer areas of their distribution
d. Lighter-pigmented in warmer areas of their distribution

2. EDTA is used as a :

a. Oxidizing agent
b. Reducing agent
c. Chelating agent
d. Both (b) and (c)

3. Which of the following element plays an important role in nitrogen fixation

a. Manganese
b. Molybdenum
c. Zinc
d. Copper

4. Pribnow box is the component of _______

a. Operators
b. Promoters
c. Enhancers
d. Activators

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