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MCQs

Total Questions : 49 | Page 5 of 5 pages
Question 41. . A diagram depicting chromosomes of haploid set of an organism ordered in a series of decreasing size is known as
  1.    zymogram
  2.    chromogram
  3.    idiogram
  4.    karyogram
 Discuss Question
Answer: Option C. -> idiogram
Question 42. . Exchange of segments between non homologous chromosomes is best known as
  1.    translation
  2.    translocation
  3.    recombination
  4.    crossing over
 Discuss Question
Answer: Option B. -> translocation
Question 43. .  Raphanobrassica is a classical example of
  1.    aneuploidy
  2.    nullisomy
  3.    allopolyploidy
  4.    None of the above
 Discuss Question
Answer: Option C. -> allopolyploidy
Question 44. . A diagram depicting chromosomes of haploid set of an organism ordered in a series of decreasing size is known as
  1.    zymogram
  2.    chromogram
  3.    idiogram
  4.    karyogram
 Discuss Question
Answer: Option C. -> idiogram
Question 45. . Hairy wing character of Drosophila is due to
  1.    duplication in region of chromosome
  2.    deletion in region of chromosome
  3.    due to presence of additional X-chromosome
  4.    due to a point mutation
 Discuss Question
Answer: Option A. -> duplication in region of chromosome
Question 46. . A cross shaped (+) or a ring involving four chromosomes may be formed during metaphase I in case of
  1.    translocation heterozygote
  2.    deficiency
  3.    haploid organism
  4.    duplication
 Discuss Question
Answer: Option A. -> translocation heterozygote
Question 47. . How does dosage compensation in Drosophila occur?
  1.    Hypertranscription of male X chromosome
  2.    Hypotranscription of female X chromosome
  3.    X inactivation in females
  4.    Chimerism
 Discuss Question
Answer: Option A. -> Hypertranscription of male X chromosome
Question 48. . Exchange of segments between non homologous chromosomes is best known as
  1.    translation
  2.    translocation
  3.    recombination
  4.    crossing over
 Discuss Question
Answer: Option B. -> translocation
Question 49. . Incase of inversion when the inverted segment of chromosome includes centromere, it is known as
  1.    paracentric inversion
  2.    double inversion
  3.    inverted inversion
  4.    pericentric inversion
 Discuss Question
Answer: Option D. -> pericentric inversion

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