Question
(a) IVF is a very popular method these days that is helping childless couples to bear a child. Describe the different steps that are carried out in this technique
(b) Would you consider Gamete Intrafallopian Transfer (GIFT) as an IVF ? Give a reason in support of your answer.
or
(a) Draw a sectional view of a human ovary and label primary follicle, tertiary follicle, Graafian follicle and corpus luteum in it.
(b) Name the gonadotropins and explain their role in oogenesis andthe release of ova.
Answer :
(a) Ova from the wife /donor (female) and sperms from the husband / donor (male ) , are collected and induced to form zygote , in simulated conditions in laboratory , the zygote/ early embryos(upto 8 blastomeres) then transferred into the fallopian tube(ZIFT), and embroyos with more than 8 blastomeres, into the uterus(IUT) to complete its further development.
(b) No, GIFT cannot be considered as IVF technique because fertilisation takes place in the female body / in vivo
or
(a)
(b) Gonadotropins- LH and FSH
As they stimulate follicular development and helps in secretion of estrogen by the growing follicle.
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