Which of the following are similar between spermatogenesis and oogenesis in vertebrate animals? both oogenesis and spermatogenesis

i) begin at the onset of sexual maturity

ii) result in the production of four functional haploid cells from one diploid cell

iii) lead to the production of gametes from germ cells

iv) are complete at the time of birth

a.
only i

b.
only iii

c.
both i and ii

d.
both iii and iv

e.
both ii and iii

B.  Only III

Explanation:

Spermatogenesis is the process of formation of sperms and

Oogenesis is the process of formation eggs.

Both these processes are necessary for sexual reproduction. Although there are similarities between these two process but there are also certain differences like

Both of these process cannot begin at the sexul maturity. Researches shows that Process of Oogenesis begins in the girl as soon as she is in her mother uterus while spermatogenesis begins at the maturity.

Both result in production of four haploid cells but all four becomes functional only in spermatogenesis and not in oogenesis.

Both these process are not completed at the time of birth this is also wrong statement

Hence true statement is only lead to the production of gametes from germ cells

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