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MCQs

Total Questions : 310 | Page 6 of 31 pages
Question 51. External Fertilization occurs in
  1.    terrestrial environment
  2.    air
  3.    aquatic environment
  4.    both land and water
 Discuss Question
Answer: Option C. -> aquatic environment
Answer: (c).aquatic environment
Question 52. Endometrium is made receptive for implantation of zygote by
  1.    estrogen
  2.    progesterone
  3.    testosterone
  4.    oxytocin
 Discuss Question
Answer: Option B. -> progesterone
Answer: (b).progesterone
Question 53. In hone bees, male or drones develop from
  1.    fertilized egg
  2.    sperm
  3.    unfertilized egg
  4.    embyo
 Discuss Question
Answer: Option C. -> unfertilized egg
Answer: (c).unfertilized egg
Question 54. Initial stage of birth is result of stimuli from the
  1.    fetal pituitary
  2.    mother's pituitary
  3.    decrease in level of progesterone
  4.    Both a and b
 Discuss Question
Answer: Option A. -> fetal pituitary
Answer: (a).fetal pituitary
Question 55. Process of development of a haploid offspring from a haploid egg is called
  1.    haploid parthenogenesis
  2.    diploid parthenogenesis
  3.    single parthenogenesis
  4.    double parthenogenesis
 Discuss Question
Answer: Option A. -> haploid parthenogenesis
Answer: (a).haploid parthenogenesis
Question 56. Baby resulting from zygote as a result of invitro fertilization outside female body is known as
  1.    fraternal twin
  2.    identical twin
  3.    test tube baby
  4.    genetic baby
 Discuss Question
Answer: Option C. -> test tube baby
Answer: (c).test tube baby
Question 57. Primary male sex hormone produced by male reproductive system is
  1.    gibberellins
  2.    testosterone
  3.    adrenalin
  4.    thyroxine
 Discuss Question
Answer: Option B. -> testosterone
Answer: (b).testosterone
Question 58. Ovoviparity occurs in
  1.    duckbill platypus
  2.    spiny ant eater
  3.    garter snake
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 59. Cloning is helpful in
  1.    studying effect of drugs on clonned animals
  2.    producing desired varieties of plants
  3.    studying effect of hormones
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 60. Genetic variability in plants is higher due to
  1.    self pollination
  2.    mitosis
  3.    cross pollination
  4.    meiosis
 Discuss Question
Answer: Option C. -> cross pollination
Answer: (c).cross pollination

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