The sex of a child is determined by which of the following ?
(a) The length of mother's pregnancy
(b) The length of time between ovulation and copulation
(c) The presence of X chromosome in ovem
(d) The presence of Y chromosome in sperm
Answers
Answered by
23
Answer:(d)
The presence of Y chromosome in sperm
Explanation:
Because..the mother produces ovum with X chromosome only...whereas sperm can carry either X or Y chromosome which determines the sex of the baby...if X chr is present in sperm—XX condition in zygote (female child)
If Y chr is present in sperm—-XY condition( male child)
Hope it helps ya:)
Answered by
3
Answer:
the length of mother s prengnancy
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