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MCQs

Total Questions : 95 | Page 2 of 10 pages
Question 11. Which of following charge is present in phosphate end of DNA?
  1.    negative
  2.    positive
  3.    neutral
  4.    no charge
 Discuss Question
Answer: Option A. -> negative
Answer: (a).negative
Question 12. Which of following bases is exclusive to RNA molecules?
  1.    guanine
  2.    thymine
  3.    cytosine
  4.    uracil
 Discuss Question
Answer: Option D. -> uracil
Answer: (d).uracil
Question 13. How wide is chromatid?
  1.    100 nm
  2.    200 nm
  3.    1000 nm
  4.    700 nm
 Discuss Question
Answer: Option D. -> 700 nm
Answer: (d).700 nm
Question 14. Amount of which of following bases is equal to amount Cytosine?
  1.    thymine
  2.    guanine
  3.    adenine
  4.    uracil
 Discuss Question
Answer: Option B. -> guanine
Answer: (b).guanine
Question 15. Which of following enzymes swivels and rejoins DNA to release tension created by replication?
  1.    telomerase
  2.    topoisomerase
  3.    helicase
  4.    proteases
 Discuss Question
Answer: Option B. -> topoisomerase
Answer: (b).topoisomerase
Question 16. Which of following proposed double helix structure of DNA?
  1.    Mendel
  2.    Marie curie
  3.    Watson and crick
  4.    Carl Correns
 Discuss Question
Answer: Option C. -> Watson and crick
Answer: (c).Watson and crick
Question 17. In E Coli, replication of chromosomes starts at a particular site called
  1.    start of replication
  2.    initiation of replication
  3.    start point
  4.    origin of replication
 Discuss Question
Answer: Option D. -> origin of replication
Answer: (d).origin of replication
Question 18. Changes in telomere with time are associated with which of following?
  1.    apoptosis
  2.    cancer
  3.    aging
  4.    respiration
 Discuss Question
Answer: Option C. -> aging
Answer: (c).aging
Question 19. Which of following forms chromatin takes when cell enters metaphase stage?
  1.    diffused mass
  2.    looped domains
  3.    coiled
  4.    supercoiled
 Discuss Question
Answer: Option C. -> coiled
Answer: (c).coiled
Question 20. Which of following histones is not found in chromatin?
  1.    h1
  2.    h2a
  3.    h2b
  4.    h3
 Discuss Question
Answer: Option A. -> h1
Answer: (a).h1

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