Bihar Board - Class 12 Biology-Chapter 3: Human Reproduction Multiple Choice Questions(MCQs)
Multiple Choice Questions
1. Which one is the primary sex organ?
(a) Scrotum
(b) Penis
(c) Testis
(d) Prostate
Ans. c
2. When released from ovary, human egg contains
(a) Only Y chromosome
(b) 2X chromosome
(c) 1X chromosome (d) XY chromosomes
Ans. c
3. In a mammalian sperm, spirally arranged mitochondria around the axial filament are present in the region of
(a) Head
(b) Middle piece
(c) Principal piece of tail (d) End piece of tail
Ans. b
4. Path of sperms from penis to the side of fertilization is:
(a) Oviduct-uterus- Cervix-vagina
(b) Vagina-cervix-uterus-aviduct
(c) Vagina-uterus-oviduct-cervix
(d) Vagina-oviduct-cervix-uterus
Ans. b
5. Ovulation takes place by
(a) FSH
(b)LH
(c) Progesterone
(d) Estradiol.
Ans. b
6. Corpus luteum produces
(a) Estradiol
(b) Testosterone (c) Progesterone
(d) None
Ans. c
7. Number of spermatozoa, a single primary spermatocyte produces in spermatogenesis, is
(a) One
(b) Two the ripe female
(c) Four
(d) Eight
Ans. c
8. The process of releasing gamete from the ovary is called
(a) Parturition
(b) Ovulation
(c) Fertilization
(d) Implantation
Ans. b
9. In which animal, the testes are abdominal during embryonic stages but migrate to scrotum just before birth where they remain throughout life (a) Elephants
(b) Men
(c) Rats
(d) Whales:
Ans. b
10. The structure formed after release of ova from graafian follicles and secretor in nature is
(a)Corpus callosum
(b) Corpus luteum
(c) Corpus albicans
(d) Corpus striatum
Ans. b
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