2nd Year MCQs Biology
Chapter No. 18 Reproduction
81. Spermatogenesis and oogenesis both involve:
(A) Mitosis only
(B) Meiosis only
(C) Both mitosis and meiosis
(D) All (A), (B) and (C) are incorrect
Answer:
(C) Both mitosis and meiosis
82. After meiosis, what differentiae s into the mature sperm?
(A) Primary spermatocyte
(B) Spermatid
(C) Secondary spermatocyte
(D) Spermatogonium
Answer:
(B) Spermatid
83. The animals which lay eggs are called:
(A) Oviparous
(B) Viviparous
(C) Dioecious
(D) Neuter
Answer:
(A) Oviparous
84. In terrestrial conditions which type fertilization is more common:
(A) External
(B) Internal
(C) Self
(D) None of these
Answer:
(B) Internal
85. In mammalian males, the reproductive and excretory system share the same:
(A) Ureter
(B) Vas deferens
(C) Urinary bladder
(D) Urethra
Answer:
(D) Urethra
86. External male genitalia are
(A) Vasa efferentia and penis
(B) Seminiferous tubules and penis
(C) Scrotum and penis
(D) None of these
Answer:
(C) Scrotum and penis
87. Human testes are packed with about how many seminiferous tubules which produce about how many million sperms every day?
(A) 200, 20
(B) 300, 40
(C) 500, 30
(D) 500, 10
Answer:
(C) 500, 30
88. Three sets of glands secrete fluids which combine with the sperm to form:
(A) Interstitial fluid
(B) Semen
(C) Amniotic fluid
(D) Both (A) and (B)
Answer:
(B) Semen
89. A human female has around how many oocytes in each of her ovary?
(A) 30,000
(B) 200,000
(C) 300,000
(D) 20,000
Answer:
(B) 200,000
90. Fertilization of human eggs most often takes place in the:
(A) Ovary
(B) Uterus
(C) Oviduct (Fallopian tube)
(D) Cervix
Answer:
(C) Oviduct (Fallopian tube)
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