Question

(e) In vitro fertilisation
11. Answer the following questions in detail : [4 marks each)
(1) Describe two methods of asexual reproduction in animals.​

Answer 1

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e) In vitro fertilisation (IVF) is a process of fertilisation where an egg is combined with sperm outside the body, in vitro ("in glass"). The process involves monitoring and stimulating a woman's ovulatory process, removing an ovum or ova (egg or eggs) from the woman's ovaries and letting sperm fertilise them in a liquid in a laboratory. After the fertilised egg (zygote) undergoes embryo culture for 2–6 days, it is implanted in the same or another woman's uterus, with the intention of establishing a successful pregnancy.

11.

1)

=> some of the methods are :-

binary fission:

the process whereby a cell divides asexually to produce two daughter cells

hermaphroditism:

having sexual organs of both sexes

parthenogenesis:

a form of asexual reproduction where growth and development of embryos occur without fertilization .

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