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Human Reproduction

Multiple Choice Questions

131.

Fertilization occur in

uterus
ureter
vagina
fallopian tube

132.

Name the hormone that has no role in menstruation

133.
In spermatogenesis, reduction division of chromosome occurs during conversion of

spermatogonia to primary spermatocytes

primary spermatocytes to secondary spermatocytes

secondary spermatocytes to spermatids

spermatids to sperms

primary spermatocytes to secondary spermatocytes

Spermatogenesis is the formation and maturation of male gametes or spermatozoan. Sperms are produced in the seminiferous tubules of testes. Diploid spermatogonia present beneath 3 to 5 cells deep from outermost layer of seminiferous tubules, increase their number by ordinary mitotic divisions and each becomes a primary spermatogonial cell or primary spermatocyte. Each primary spermatocyte undergoes first, meiotic (reductional) division and forms two secondary spermatocytes. Each of these, without any intervention undergoes the second meiotic division and gives rise to two spermatids. Each spermatid undergoes the process of spermiogenesis to become a sperm.

134.

Presence of which of the following hormone in the urine confirms pregnancy?

Progesterone
Oestrogen
Human chorionic gonadotropin
Prolactin

135.

A pregnant female delivers a baby, who suffers from stunted growth, mental retardation low intelligence quotient and abnormal skin. This is the result of