Q.1. The correct sequence of stages in spermatogenesis are:
(a) spermatogonia → spermatid → spermatocyte → sperm
(b) spermatocyte → spermatogonia → spermatid → sperm
(c) spermatogonia → spermatocyte → spermatid → sperm
(d) spermatid → spermatocyte → spermatogonia → sperm
Q.2. The signals of parturition originate from
(b) fully developed foetus
(c) oxytocin released from pituitary
(d) both placenta and fully developed foetus
Q.3. The membranous cover of the ovum at ovulation is
(a) corona radiata
(b) zona radiata
(c) zona pellucida
Q.4. Identify the odd one from the following.
(a) Labia minora
Q.5. The Leydig cells are a source of
Q.6. The function of corpus luteum is to produce
Q.7. Choose the incorrect statement from the following.
(a) In birds and mammals internal fertilisation takes place.
(b) Colostrum contains antibodies and nutrients.
(c) Polyspermy in mammals is prevented by the chemical changes in the egg surface.
(d) In the human female implantation occurs almost seven days after fertilisation.
Q.8. Which hormone of pituitary gland regulates Sertoli cells?
Q.9. Identify the correct statement from the following.
(a) High levels of estrogen triggers the ovulatory surge.
(b) Oogonial cells start to proliferate and give rise to functional ova in regular cycles from puberty onwards.
(c) Sperms released from seminiferous tubules are highly motile/non-motile.
(d) Progesterone level is high during the post ovulatory phase of menstrual cycle.
Q.10. Spot the odd one out from the following structures with reference to the male reproductive system.
(a) Rete testis
(c) Vasa efferentia
Q.11. Seminal plasma, the fluid part of semen, is contributed by.
(i) Seminal vesicle (ii) Prostate gland (iii) Urethra (iv) Bulbourethral gland
(a) (i) and (ii)
(b) (i), (ii) and (iv)
(c) (ii), (iii) and (iv)
(d) (i) and (iv)
Q.12. Which of the following statements is incorrect?
(a) GnRH stimulates secretion of FSH and LH
(b) LH stimulates the Leydig cells to secrete androgen
(c) FSH acts on the Sertoli cells and stimulates spermiogenesis
(d) None of these
Q.13. Spermiation is the process of the release of sperms from.
(a) Seminiferous tubules
(b) Vas deferens
(d) Prostate gland
Q.14. Mature Graafian follicle is generally present in the ovary of a healthy human female around.
(a) 5 – 8 day of menstrual cycle
(b) 11 – 17 day of menstrual cycle
(c) 18 – 23 day of menstrual cycle
(d) 24 – 28 day of menstrual cycle
Q.15. Acrosomal reaction of the sperm occurs due to
(a) its contact with zona pellucida of the ova
(b) reactions within the uterine environment of the female
(c) reactions within the epididymal environment of the male
(d) androgens produced in the uterus
Q.16. Seminal plasma in humans is rich in
(a) fructose and calcium
(b) glucose and calcium
(c) Progesterone and testosterone
(d) potassium and calcium
Q.17. Which one of the following is not a male accessory gland?
(a) Seminal vesicle
(d) Bulbourethral gland
Q.18. Match between the following representing parts of the sperm and their functions and choose the correct option.
|Column I||Column II|
|(A) Head||(i) Enzymes|
|(B) Middle piece||(ii) Sperm motility|
|(C) Acrosome||(iii) Energy|
|(D) Tail||(iv) Genetic material|
(a) A-(ii), B-(iv), C-(i), D-(iii)
(b) A-(iv), B-(iii), C-(i), D-(ii)
(c) A-(iv), B-(i), C-(ii), D-(iii)
(d) A-(ii), B-(i), C-(iii), D-(iv)
Q.19. Number of chromosomes in polar body of human is
Q.20. Which among the following has 23 chromosomes?
(c) Secondary oocyte
Q.21. Match the following and choose the correct options
|Column I||Column II|
|(A) Trophoblast||(i) Embedding of blastocyst in the endome trium|
|(B) Cleavage||(ii) Group of cells that would differentiate as embryo|
|(C) Inner cell mass||(iii) Outer layer of blastocyst attached to the endometrium|
|(D) Implantation||(iv) Mitotic division of zygote|
(a) A-(ii), B-(i), C-(iii), D-(iv)
(b) A-(iii), B-(iv), C-(ii), D-(i)
(c) A-(iii), B-(i), C-(ii), D-(iv)
(d) A-(ii), B-(iv), C-(iii), D-(i)
Q.22. Which of the following hormones is not secreted by human placenta?
Q.23. The vas deferens receives duct from the seminal vesicle and opens into urethra as
(b) ejaculatory duct
(c) efferent ductule
Q.24. Urethral meatus refers to the
(a) urinogenital duct
(b) opening of vas deferens into urethra
(c) external opening of the urinogenital duct
(d) muscles surrounding the urinogenial duct
Q.25. The immature male germs cell undergo division to produce sperms by the process of spermatogenesis. Choose the correct one with reference to above.
(a) Spermatogonia have 46 chromosomes and always undergo meiotic cell division
(b) Primary spermatocytes divide by mitotic cell division
(c) Secondary spermatocytes have 23 chromosomes and undergo second meiotic division
(d) Spermatozoa are transformed into spermatids
Q.26. Morula is a developmental stage
(a) between the zygote and blastocyst
(b) between the blastocyst and gastrula
(c) after the implantation
(d) between implantation and parturition
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