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Published on: 26/08/2019
Human Reproduction
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Questions + Answers key
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1.
When do oogenesis and spermatogenesis initiate in human female and male,respectively?
2.
Name the calls that nourish the germ cells in the testes.Where are these cells located in the testes?
3.
How does the sperm penetrate through the zona pellucida in human ovum?
4.
Ina normal pregnant woman, the amount of total gonadotropin activity was assessed. the result expected was
High level of circulating FSH and LH in the uterus to stimulate implantation of the embryo
High level of circulating HCG to stimulate endometrial thickening
High level of FSH and LH in uterus to stimulate endometrial thickening
high level of circulating Hcg to stimulate estrogen and progesterone synthesis
5.
Foetal ejection reflex in human female is induced by
differentiation of mammary glands
the pressure exerted by amniotic fluid
the release of oxytocin from pituitary
fully developed foetus and placenta
6.
Some important events in the human female reproductive cycle are given below.Arrange the events in a proper sequence.A-secretion of FSH, B-growth of corpus luteum, C-growth of the follicle and oogenesis, D-ovulation, E-sudden increase in the levels of LH
A D C E B
B A C D E
C A D B E
A C E D B
7.
In human beings, the eggs are:
Skin lecithal
Macrolecithal
Mesolecithal
Alecithal
1.
( )
Oogenesis starts during embryonic developmental stages of the female foetus.
Spermatogenesis starts at puberty.
2.
( )
Sertoli cells.They are found on the inner lining of seminiferous tubule .
3.
( )
The sperm penetrates through zona pellucida with the help of secretions from acrosome.
4.
(d)
high level of circulating Hcg to stimulate estrogen and progesterone synthesis
5.
(d)
fully developed foetus and placenta
6.
(d)
A C E D B
7.
(d)
Alecithal
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