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Human Reproduction - Biology Revision Test (Class 12th) | MCQs For NEET

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This practice test includes Biology (Class 12th ) 25 important questions from the chapter human reproduction. Start Test without Login in
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Q.1. Ovulation in the human female normally takes place during the menstrual cycle

  1. at the mind secretory phase
  2. just before the end of the secretory phase
  3. at the beginning of the proliferative phase
  4. at the end of the proliferative phase

Q.2. After ovulation Graafian follicle regreses into

  1. corpus atresia
  2. corpus callosum
  3. corpus luteum
  4. corpus albicans

Q.3. Immediately after ovulation, the mammalian egg is covered by a membrane known as

  1. chorion
  2. zona pellucida
  3. corona radiata
  4. vitelline membrane.

Q.4. Which one of the following events is correctly matched with the time period in a normal menstrual cycle ?

  1. Release of egg : 5 th day
  2. Endometrium regenerates : 5 – 10 days
  3. Endometrium secretes nutrients for implantation: 11 – 18 days
  4. Rise in progesterone level : 1 – 15 days

Q.5. If mammalian ovum fails to get fertilised, which one of the following is unlikely ?

  1. Corpus luteum will distintegrate.
  2. Progesterone secretion rapidly declines.
  3. Estrogen secretion increases.
  4. Primary follicle starts developing

Q.6. A human female reaches menopause aroung the age of__ yrs

  1. 50
  2. 15
  3. 70
  4. 25

Q.7. A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is

  1. acrosomal reaction
  2. cortical reaction
  3. acrosin reaction
  4. bindin reaction

Q.8. Which part of the sperm plays an important role in penetrating the egg membrane ?

  1. Allosome
  2. Tail
  3. Autosome
  4. Acrosome

Q.9. In oocyte secondary maturation occurs in

  1. ovary
  2. abdominal cavity
  3. Fallopian tube
  4. uterus.

Q.10. Besides activating the egg another role of a sperm is to carry to egg

  1. RNA
  2. mitochondria
  3. DNA
  4. ribosomes

Q.11. Preparation of sperm before penetration of ovum is

  1. spermiation
  2. cortical reaction
  3. spermiogenesis
  4. capacitation

Q.12. The function of the secretion of prostate gland is to

  1. inhibit sperm activity
  2. attract sperms
  3. stimulate sperm activity
  4. none of these.

Q.13. Lower narrow end of uterus is called

  1. urethra
  2. cervix
  3. clitoris
  4. vulva

Q.14. Bartholin’s glands are situated

  1. on the either side of vagina in humans
  2. on either side of vas deferens in humans
  3. on either side of penis in humans
  4. on either side of Fallopian tube in humans

Q.15. In human adult females oxytocin

  1. stimulates pituitary to secrete vasopressin
  2. causes strong uterine contractions during parturition
  3. is secreted by anterior pituitary
  4. stimulates growth of mammary glands

Q.16. The third stage of parturition is called “after-birth”. In this stage

  1. excessive bleeding occurs
  2. fetus is bom and cervix and vagina contraction to normal condition happens
  3. fetus is bom and contraction of uterine wall prevents excessive bleeding
  4. placenta is expelled out

Q.17. spot the odd one out from the following structures with reference to the male reproductive system

  1. Rate testis
  2. Epididymis
  3. Vasa efferentia
  4. Isthmus

Q.18. In humans, at the end of the first meiotic division, the male germ cells differentiate into the

  1. spermatids
  2. spermatogonia
  3. primary spermatocytes
  4. secondary spermatocytes

Q.19. How many sperms are formed from a secondary spermatocyte ?

  1. 4
  2. 8
  3. 2
  4. 1

Q.20. How many sperms are formed from 4 primary spermatocytes ?

  1. 4
  2. 1
  3. 16
  4. 32

Q.21. In spermatogenesis, reduction division of chromosome occurs during conversion of

  1. spermatogonia to primary spermatocytes
  2. primary spermatocytes to secondary spermatocytes
  3. secondary spermatocytes to spermatids
  4. spermatids to sperms

Q.22. Which of the following groups of cells in the male gonad, represent haploid cells ?

  1. Spermatogonial cells
  2. Germinal epithelial cells
  3. Secondary spermatocytes
  4. Primary spermatocytes

Q.23. The process of release of spermatozoa from Sertoli cells into cavity of the seminiferous tubules is called

  1. spermiogenesis
  2. spermatogenesis
  3. spermatocytogenesis
  4. spermiation

Q.24. Acrosome is a type of

  1. lysosome
  2. flagellum
  3. ribosome
  4. basal body

Q.25. At what stage of life is oogenesis initiated in a human female ?

  1. At puberty
  2. During menarch
  3. During menopause
  4. During embryonic development
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