Q1. Ovulation in the human female normally takes place during the menstrual cycle
A) at the mind secretory phase
B) just before the end of the secretory phase
C) at the beginning of the proliferative phase
D) at the end of the proliferative phase
Answer: (D) at the end of the proliferative phase
It takes place at the end of the proliferative phase.
Q2. After ovulation Graafian follicle regreses into
A) corpus atresia
B) corpus callosum
C) corpus luteum
D) corpus albicans
Answer: (C) corpus luteum
Graafian follicle regreses into corpus luteum
Q3. Immediately after ovulation, the mammalian egg is covered by a membrane known as
A) chorion
B) zona pellucida
C) corona radiata
D) vitelline membrane.
Answer: ()
membrane is known as vitelline membrane.
Q4. Which one of the following events is correctly matched with the time period in a normal menstrual cycle ?
A) Release of egg : 5 th day
B) Endometrium regenerates : 5 – 10 days
C) Endometrium secretes nutrients for implantation: 11 – 18 days
D) Rise in progesterone level : 1 – 15 days
Answer: (B) Endometrium regenerates : 5 – 10 days
Q5. If mammalian ovum fails to get fertilised, which one of the following is unlikely ?
A) Corpus luteum will distintegrate.
B) Progesterone secretion rapidly declines.
C) Estrogen secretion increases.
D) Primary follicle starts developing
Answer: (C) Estrogen secretion increases.
Estrogen secretion increases and menstruation occurs
Q6. A human female reaches menopause aroung the age of__ yrs
A) 50
B) 15
C) 70
D) 25
Answer: (A) 50
Q7. A reaction of granules content which harden the zona pellucida and ensures sure block to polyspermy is
A) acrosomal reaction
B) cortical reaction
C) acrosin reaction
D) bindin reaction
Answer: (B) cortical reaction
It is known as cortical reaction.
Q8. Which part of the sperm plays an important role in penetrating the egg membrane ?
A) Allosome
B) Tail
C) Autosome
D) Acrosome
Answer: (D) Acrosome
Acrosome penetrates the egg membrane.
Q9. In oocyte secondary maturation occurs in
A) ovary
B) abdominal cavity
C) Fallopian tube
D) uterus.
Answer: (C) Fallopian tube
secondary maturation occurs in Fallopian tube
Q10. Besides activating the egg another role of a sperm is to carry to egg
A) RNA
B) mitochondria
C) DNA
D) ribosomes
Answer: (C) DNA
Q11. Preparation of sperm before penetration of ovum is
A) spermiation
B) cortical reaction
C) spermiogenesis
D) capacitation
Answer: (A) spermiation
Preparation of sperm before penetration of ovum is known as spermiation
Q12. The function of the secretion of prostate gland is to
A) inhibit sperm activity
B) attract sperms
C) stimulate sperm activity
D) none of these.
Answer: (C) stimulate sperm activity
secretion of prostate gland is to stimulate sperm activity
Q13. Lower narrow end of uterus is called
A) urethra
B) cervix
C) clitoris
D) vulva
Answer: (B) cervix
Lower narrow end of uterus is called cervix
Q14. Bartholin’s glands are situated
A) on the either side of vagina in humans
B) on either side of vas deferens in humans
C) on either side of penis in humans
D) on either side of Fallopian tube in humans
Answer: (A) on the either side of vagina in humans
It is situated on the either side of vagina in humans.
Q15. In human adult females oxytocin
A) stimulates pituitary to secrete vasopressin
B) causes strong uterine contractions during parturition
C) is secreted by anterior pituitary
D) stimulates growth of mammary glands
Answer: (B) causes strong uterine contractions during parturition
It causes strong uterine contractions during parturition
Q16. The third stage of parturition is called “after-birth”. In this stage
A) excessive bleeding occurs
B) fetus is bom and cervix and vagina contraction to normal condition happens
C) fetus is bom and contraction of uterine wall prevents excessive bleeding
D) placenta is expelled out
Answer: ()
In this stage placenta is expelled out
Q17. spot the odd one out from the following structures with reference to the male reproductive system
A) Rate testis
B) Epididymis
C) Vasa efferentia
D) Isthmus
Answer: (D) Isthmus
Q18. In humans, at the end of the first meiotic division, the male germ cells differentiate into the
A) spermatids
B) spermatogonia
C) primary spermatocytes
D) secondary spermatocytes
Answer: (D) secondary spermatocytes
It differentiate into secondary spermatocytes
Q19. How many sperms are formed from a secondary spermatocyte ?
A) 4
B) 8
C) 2
D) 1
Answer: (C) 2
Q20. How many sperms are formed from 4 primary spermatocytes ?
A) 4
B) 1
C) 16
D) 32
Answer: (C) 16
Q21. In spermatogenesis, reduction division of chromosome occurs during conversion of
A) spermatogonia to primary spermatocytes
B) primary spermatocytes to secondary spermatocytes
C) secondary spermatocytes to spermatids
D) spermatids to sperms
Answer: (B) primary spermatocytes to secondary spermatocytes
It occurs during conversion of primary spermatocytes to secondary spermatocytes
Q22. Which of the following groups of cells in the male gonad, represent haploid cells ?
A) Spermatogonial cells
B) Germinal epithelial cells
C) Secondary spermatocytes
D) Primary spermatocytes
Answer: (C) Secondary spermatocytes
Q23. The process of release of spermatozoa from Sertoli cells into cavity of the seminiferous tubules is called
A) spermiogenesis
B) spermatogenesis
C) spermatocytogenesis
D) spermiation
Answer: (D) spermiation
Q24. Acrosome is a type of
A) lysosome
B) flagellum
C) ribosome
D) basal body
Answer: ()
Acrosome is a type of lysosome
Q25. At what stage of life is oogenesis initiated in a human female ?
A) At puberty
B) During menarch
C) During menopause
D) During embryonic development
Answer: ()
It initiates at puberty.
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