Which of the following events is not associated with ovulation in human female?
1. Decrease in oestradiol
2. Full development of Graafian follicle
3. Release of secondary oocyte
4. LH surge
In human females, meiosis-II is not completed until
1. Puberty
2. fertilization
3. Uterine implantation
4. birth
Which of the following cells during gametogenesis is normally diploid?
1. Primary polar body
2. Spermatid
3. Spermatogonia
4. Secondary polar body
The main function of mammalian corpus luteum is to produce
1. estrogen only
2. progesterone
3. human chorionic gonadotropin
4. relaxin only
The figure given below depicts a diagrammatic sectional view of the female
reproductive system of humans. Which one set of three parts out of A-F have been
correctly identified?
1. C-lnfundibulum, D-Fimbriae, E-Cervix
2. D-Oviducal funnel, E-Uterus, F-Cervix
3. A-Perimetrium, B-Myometxium, C-Fallopian tube
4. B-Endometrium, C-Infundibulum, D-Fimbriae
The testes in humans are situated outside the abdominal cavity inside a pouch called scrotum. The purpose served is for
1. | escaping any possible compression by the visceral organs |
2. | providing more space for the growth of epididymis |
3. | providing a secondary sexual feature for exhibiting the male sex |
4. | maintaining the scrotal temperature lower than the internal body temperature |
Sertoli cells are found in
1. ovaries and secrete progesterone
2. adrenal cortex and secrete adrenalin
3. seminiferous tubules and provide nutrition to germ cells
4. pancreas and secrete cholecystokinin
Vasa efferentia are the ductules leading from
1. testicular lobules to rete testis
2. rete testis to vas deferens
3. vas deferens to epididymis
4. epididymis to urethra
The second maturation division of the mammalian ovum occurs
1. shortly after ovulation before the ovum makes entry imto the Fallopian rube
2. until after the ovum has been penetrated by a sperm
3. until the nucleus of the sperm has fused with that of the ovum
4. in the Graafian follicle following the first maturation division
Which one of the following statements about human sperm is correct?
1. Acrosome has a conical pointed structure used for piercing and penetrating the
egg, resulting in fertilization
2. The sperm lysins in the acrosome dissolve the egg envelope facilitating fertilization
3. Acrosome serves as a sensory structure leading the sperm towards the ovum
4. Acrosome serves no particular function