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Total Questions : 105 | Page 2 of 11 pages
Question 11. What is the detection technique of auxotrophs?
  1.    Spread plating
  2.    Replica plating
  3.    Streaking
  4.    Pouring
 Discuss Question
Answer: Option B. -> Replica plating
Answer: (b).Replica plating
Question 12. Name the type of mutation in which the cause of mutation is not known?
  1.    Spontaneous mutation
  2.    Suppressor mutation
  3.    Nonsense mutation
  4.    Mis-sense mutation
 Discuss Question
Answer: Option A. -> Spontaneous mutation
Answer: (a).Spontaneous mutation
Question 13. Addition or deletion of bases causes which kind of mutation?
  1.    Transversion
  2.    Frameshift mutation
  3.    Transition
  4.    Transcription
 Discuss Question
Answer: Option B. -> Frameshift mutation
Answer: (b).Frameshift mutation
Question 14. Haploid spermatids modified into motile spermatozoa by the process called___________
  1.    Mutation
  2.    DNA repair
  3.    Translation
  4.    Spermiogenesis
 Discuss Question
Answer: Option D. -> Spermiogenesis
Answer: (d).Spermiogenesis
Question 15. Which of the following chemical mutagen affects only replicating DNA?
  1.    Acridine dye
  2.    Alkylating agent
  3.    Deaminating agent
  4.    Base analog
 Discuss Question
Answer: Option D. -> Base analog
Answer: (d).Base analog
Question 16. Which of the following equation shows DNA renaturation reaction?
  1.    Sec 60
  2.    Cot₁/₂
  3.    Tan 30
  4.    Cot 40
 Discuss Question
Answer: Option B. -> Cot₁/₂
Answer: (b).Cot₁/₂
Question 17. What is alphoid DNA?
  1.    Large size DNA
  2.    Sequences that are unique
  3.    DNA repeats found in centromere region
  4.    Highly repetitive DNA
 Discuss Question
Answer: Option C. -> DNA repeats found in centromere region
Answer: (c).DNA repeats found in centromere region
Question 18. Name the sequences which are present in more than one copy in a haploid genome?
  1.    Nonrepetitive DNA
  2.    Highly repetitive DNA
  3.    Repetitive DNA
  4.    Minisatellite
 Discuss Question
Answer: Option C. -> Repetitive DNA
Answer: (c).Repetitive DNA
Question 19. Where does microsatellite DNA present in the chromosomes?
  1.    Dispersed throughout the chromosome
  2.    At the telomere end
  3.    At the centromere
  4.    Mainly at metacentric region
 Discuss Question
Answer: Option A. -> Dispersed throughout the chromosome
Answer: (a).Dispersed throughout the chromosome
Question 20. Mark the INCORRECT statement about minisatellites.
  1.    Tendemly repetited DNA
  2.    Form clusters up to 20kb in length
  3.    Shorter clusters
  4.    Found in the centromere region
 Discuss Question
Answer: Option D. -> Found in the centromere region
Answer: (d).Found in the centromere region

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