Life Sciences

MOLECULAR GENETICS MCQs

Total Questions : 105

Page 1 of 11 pages
Question 1. C-value in genome represents___________
  1.    Genetic disorders
  2.    Phenotypic variation
  3.    Amount of DNA present in the genome
  4.    Qualitative traits
 Discuss Question
Answer is Option C. -> Amount of DNA present in the genome
Answer: (c).Amount of DNA present in the genome
Question 2. How does genome complexity of denatured DNA measure?
  1.    Giemsa staining
  2.    Reverse chromatography
  3.    Denaturation kinetics
  4.    Renaturation kinetics
 Discuss Question
Answer is Option D. -> Renaturation kinetics
Answer: (d).Renaturation kinetics
Question 3. What is the genome size of yeast?
  1.    12
  2.    120
  3.    170
  4.    3,300
 Discuss Question
Answer is Option A. -> 12
Answer: (a).12
Question 4. Eukaryotes and prokaryotes have either DNA genome or RNA genome.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer is Option B. -> False
Answer: (b).False
Question 5. Name the phenomenon which shows the lack of correlation in genome size and genetic complexity.
  1.    Histogram
  2.    Karyogram
  3.    Dendrogram
  4.    C-value paradox
 Discuss Question
Answer is Option D. -> C-value paradox
Answer: (d).C-value paradox
Question 6. Name the sequence of RNA, which is recognized by a small subunit of the ribosome.
  1.    Rho utilization site
  2.    Downstream sequence
  3.    Upstream sequence
  4.    Shine Dalgarno sequence
 Discuss Question
Answer is Option D. -> Shine Dalgarno sequence
Answer: (d).Shine Dalgarno sequence
Question 7. Which of the following is considered as a start codon?
  1.    AUG
  2.    GUG
  3.    UAG
  4.    AGG
 Discuss Question
Answer is Option A. -> AUG
Answer: (a).AUG
Question 8. Which of the following is not true to the nature of the genetic code?
  1.    Codon is triplet
  2.    Codons are commaless
  3.    Codons are overlapping
  4.    Codons are universal
 Discuss Question
Answer is Option C. -> Codons are overlapping
Answer: (c).Codons are overlapping
Question 9. Mark the one, which is NOT a stop codon?
  1.    UAA
  2.    UAG
  3.    UGA
  4.    GGA
 Discuss Question
Answer is Option D. -> GGA
Answer: (d).GGA
Question 10. Who explained the wobble hypothesis?
  1.    Darwin
  2.    Watson and Crick
  3.    Samuel B. Weiss
  4.    Nirenberg
 Discuss Question
Answer is Option B. -> Watson and Crick
Answer: (b).Watson and Crick