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MCQs

Total Questions : 111 | Page 2 of 12 pages
Question 11. Sticky ends of fragments produced by restriction enzymes can be joined by
  1.    protease
  2.    isomerase
  3.    DNA ligase
  4.    helicase
 Discuss Question
Answer: Option C. -> DNA ligase
Answer: (c).DNA ligase
Question 12. Taq enzyme is acquired by which bacterial species?
  1.    e coli
  2.    Thermus aquaticus
  3.    halophiles
  4.    Alicyclobacillus
 Discuss Question
Answer: Option B. -> Thermus aquaticus
Answer: (b).Thermus aquaticus
Question 13. What are variations in coding or noncoding DNA called?
  1.    heterogeneity
  2.    polymorphisms
  3.    variations
  4.    differences
 Discuss Question
Answer: Option B. -> polymorphisms
Answer: (b).polymorphisms
Question 14. Which of following heat-stable enzyme is used for PCR reaction?
  1.    taq polymerase
  2.    DNA polymerase
  3.    RNA polymerase
  4.    amplifier
 Discuss Question
Answer: Option A. -> taq polymerase
Answer: (a).taq polymerase
Question 15. Small circular pieces of DNA inside a bacteria that replicate independently are called
  1.    prions
  2.    viroids
  3.    plasmids
  4.    genome
 Discuss Question
Answer: Option C. -> plasmids
Answer: (c).plasmids
Question 16. What is diploid number of chromosomes of dogs?
  1.    8
  2.    78
  3.    34
  4.    2
 Discuss Question
Answer: Option B. -> 78
Answer: (b).78
Question 17. Any cell that has two of each chromosome is called
  1.    diploid
  2.    haploid
  3.    diploidic
  4.    Polyploid
 Discuss Question
Answer: Option A. -> diploid
Answer: (a).diploid
Question 18. Transmission of traits from one generation to next is called
  1.    transmission
  2.    heredity
  3.    transduction
  4.    mutation
 Discuss Question
Answer: Option B. -> heredity
Answer: (b).heredity
Question 19. Which of following chromosomal combination represents a male?
  1.    YO
  2.    XX
  3.    XY
  4.    YY
 Discuss Question
Answer: Option C. -> XY
Answer: (c).XY
Question 20. Specific position of gene along a chromosome is called
  1.    location
  2.    arm
  3.    locus
  4.    side
 Discuss Question
Answer: Option C. -> locus
Answer: (c).locus

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