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MCQs

Total Questions : 189 | Page 4 of 19 pages
Question 31. Mutation is sudden change in number and structure of
  1.    Gene
  2.    Nucleus
  3.    Cell
  4.    Cytoplasm
 Discuss Question
Answer: Option A. -> Gene
Answer: (a).Gene
Question 32. In sickle cell anaemia, the red blood cell become sickle shaped due to deficiency of
  1.    Carbon dioxide
  2.    Oxygen
  3.    Minerals
  4.    Water
 Discuss Question
Answer: Option B. -> Oxygen
Answer: (b).Oxygen
Question 33. Albinism is caused by absence of skin
  1.    Pigment
  2.    Hair
  3.    Vessels
  4.    Nails
 Discuss Question
Answer: Option A. -> Pigment
Answer: (a).Pigment
Question 34. If a gene exists in more than two alleles, is called
  1.    Mutiple alleles
  2.    Few alleles
  3.    Single alleles
  4.    two alleles
 Discuss Question
Answer: Option A. -> Mutiple alleles
Answer: (a).Mutiple alleles
Question 35. The example of co dominance is blood group
  1.    A
  2.    B
  3.    AB
  4.    O
 Discuss Question
Answer: Option C. -> AB
Answer: (c).AB
Question 36. If an individual has alleles IA and IB, his blood group will be
  1.    A
  2.    B
  3.    O
  4.    AB
 Discuss Question
Answer: Option D. -> AB
Answer: (d).AB
Question 37. Somatic cells are not involved in process of
  1.    Growth
  2.    Germination
  3.    Reproduction
  4.    Digestion
 Discuss Question
Answer: Option C. -> Reproduction
Answer: (c).Reproduction
Question 38. Non separation of chromosome 21 at gemetes formation may associated with
  1.    Father
  2.    Baby
  3.    Mother
  4.    Fetus
 Discuss Question
Answer: Option C. -> Mother
Answer: (c).Mother
Question 39. The agents which increase the rate of mutations are
  1.    Active agents
  2.    Mutagen
  3.    Rapid agents
  4.    Non mutagen
 Discuss Question
Answer: Option B. -> Mutagen
Answer: (b).Mutagen
Question 40. If a host other than E.coli is to be used, what property of DNA to be inserted is disadvantageous?
  1.    Circular DNA
  2.    Linear DNA
  3.    Replicating DNA
  4.    Non-replicating DNA
 Discuss Question
Answer: Option C. -> Replicating DNA
Answer: (c).Replicating DNA

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