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MCQs

Total Questions : 165 | Page 2 of 17 pages
Question 11. Minisatellites are made up of repeat units of up to ____ and microsatellites compose of repeat units of ____ or less.
  1.    25 bp, 10 bp
  2.    70 bp, 6 bp
  3.    80 bp, 9 bp
  4.    25 bp, 4 bp
 Discuss Question
Answer: Option D. -> 25 bp, 4 bp
Answer: (d).25 bp, 4 bp
Question 12. In nondividing cells, a mixture of lightly and darkly stained chromosomal regions called euchromatin and heterochromatin respectively, are observed.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 13. Genes that are transcribed are located in the ______
  1.    euchromatin
  2.    heterochromatin
  3.    heterochromatin and euchromatin
  4.    tightly bound DNA
 Discuss Question
Answer: Option A. -> euchromatin
Answer: (a).euchromatin
Question 14. ______ can comprise a large proportion of the eukaryotic genome as ______
  1.    transposable elements, single copy sequences
  2.    transposable elements, repetitive sequences
  3.    macrosatellite DNA elements, single copy sequences
  4.    satellite DNA elements, single copy sequences
 Discuss Question
Answer: Option B. -> transposable elements, repetitive sequences
Answer: (b).transposable elements, repetitive sequences
Question 15. (Transposable Elements) TEs have the potential to _____ in number until they comprise a ____ proportion of the genome sequence.
  1.    decrease, large
  2.    decrease, micro
  3.    increase, micro
  4.    increase, large
 Discuss Question
Answer: Option D. -> increase, large
Answer: (d).increase, large
Question 16. More than _____ of the human genome consists of interspersed repetitive sequences derived from TEs (transposable elements).
  1.    one-third
  2.    one-eighth
  3.    one-fifth
  4.    half
 Discuss Question
Answer: Option A. -> one-third
Answer: (a).one-third
Question 17. _____ of the human genome comprises one particular family of the SINE Element, designated Alu (1.2 million copies).
  1.    10%
  2.    20%
  3.    60%
  4.    40%
 Discuss Question
Answer: Option A. -> 10%
Answer: (a).10%
Question 18. The retroposons include short _________ interspersed nuclear elements (SINES).
  1.    90–4000 bp long
  2.    80–500 Mbp long
  3.    80–300 bp long
  4.    100–3000 bp long
 Discuss Question
Answer: Option C. -> 80–300 bp long
Answer: (c).80–300 bp long
Question 19. The human genome contains about _________ of class II of elements that probably predate human evolution (Smit 1996).
  1.    2,000 copies
  2.    200,000 copies
  3.    2,00,00,000 copies
  4.    20,00,000 copies
 Discuss Question
Answer: Option B. -> 200,000 copies
Answer: (b).200,000 copies
Question 20. Vertebrate chromosomes have long (>300 kb) regions of distinct GC richness, repeat content, and gene density, designated isochores in a model of genome organization proposing that genomes are made up of distinct segments of unique composition.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True

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