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MCQs

Total Questions : 310 | Page 4 of 31 pages
Question 31. Secondary spermatocytes and spermatids are formed by meiotic division in
  1.    primary spermatocytes
  2.    spermatogonia
  3.    primary oocytes
  4.    polar body
 Discuss Question
Answer: Option A. -> primary spermatocytes
Answer: (a).primary spermatocytes
Question 32. Vernalin hormone resembles
  1.    cytokinin
  2.    auxin
  3.    gibberellin
  4.    ethene
 Discuss Question
Answer: Option C. -> gibberellin
Answer: (c).gibberellin
Question 33. Vernalisation is induced by hormone
  1.    veriline
  2.    vermalin
  3.    vernalin
  4.    venralin
 Discuss Question
Answer: Option C. -> vernalin
Answer: (c).vernalin
Question 34. Multiple fission is a characteristic reproduction mechanism in
  1.    plant like protoctists
  2.    animal like protoctists
  3.    hydra
  4.    earthworm
 Discuss Question
Answer: Option B. -> animal like protoctists
Answer: (b).animal like protoctists
Question 35. Twins which are produced asexually are
  1.    dizygotic twins
  2.    non-identical twins
  3.    identical twins
  4.    diembryonic twins
 Discuss Question
Answer: Option C. -> identical twins
Answer: (c).identical twins
Question 36. During night, a plant has phytochrome in form of
  1.    p730
  2.    P660
  3.    p700
  4.    p660
 Discuss Question
Answer: Option B. -> P660
Answer: (b).P660
Question 37. Uterine tube or fallopian tube opens into the
  1.    oviduct
  2.    cervix
  3.    uterus
  4.    vagina
 Discuss Question
Answer: Option C. -> uterus
Answer: (c).uterus
Question 38. In case of no fertilization,
  1.    progesterone secretion diminishes
  2.    progesterone's spongy effect on endometrium reduces
  3.    endometrium suffers a breakdown
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 39. Chromosome doubling in every generation reproducing sexually is prevented by
  1.    meiosis
  2.    reduction division
  3.    mitosis
  4.    Both a and b
 Discuss Question
Answer: Option D. -> Both a and b
Answer: (d).Both a and b
Question 40. Internal fertilization is advantageous because it protects fertilized egg from
  1.    dehydration
  2.    predation
  3.    harsh environment
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above

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