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

Free Net Life Science Study Materials

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

Read more

MCQ on Fatty Acids

mcq biology

Biochemistry MCQ-10: Fatty acids are a type of lipid that are used as a building block for other lipids in …

Read more

MCQ on Lipids

easybiologyclass, biochemistry of plasma membrane

Biochemistry MCQ-09: Lipids are a broad class of biomolecules that are insoluble in water but soluble in organic solvents like …

Read more

DBT BET Previous Year Question Paper: 2012-2013 with Answer key: Part 4 (Question 101 – 150)

Biotechnology Eligibility Test Preparation

Telomer-structure
Three-dimensional structure of a telomere G-quadruplex (source wikipeida)

Biotechnology Eligibility Test (BET) for DBT JRF Award (2012-13)
Previous Year Question Papers with Answer Key, Explanations & References
Government of India, Ministry of Science & Technology
Department of Biotechnology, New Delhi
PART: B Set 4 (Questions 101– 150)


101. Telomeres consists of simple sequence repeats of

a. CATT rich strands that interact with protein
b. GCCT rich strands that interact with protein
c. CTTT rich strands that interact with protein
d. TTAGGG rich strands that interact with protein

Ans. (a)

Telomere is the sequence occurs at the end of chromosome. Telomere helps to maintain the integrity of chromosome by preventing the end to end fusion of different chromosome and deterioration of chromosomes by nucleases. In vertebrates telomere consists of TTAGGG sequence repeats (~2500 repeats).

102. True activators of transcription are transcription factors that binds to

a. Other proteins to enhance transcription
b. Promoters
c. Enhancers
d. Promoters and enhancers

Ans. (c)

Enhancers are cis acting transcription factor binding sites of DNA (50 – 1500 bp long) of specific genes

Read more

error: Content is protected !!