Question

State the importance of chromosomal difference between sperms and eggs of humans.

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Answer 1

A male has one X chromosome and one Y chromosome. Thus half the sperms will have X chromosome and the other half will have Y chromosome.

A female has two X chromosome while no Y chromosome is present. So all the female gametes will have only X chromosomes. If a sperm carrying X chromosome fertilizes an ovum then a girl child will be born. If the sperm carrying Y chromosome fertilizes the ovule then a boy child will born.

So, the sex of the child depends on the male chromosome.

Thus the chromosomal difference between sperms and eggs of humans determine the sex of the child.

Answer 2

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A male has one X chromosome and one Y chromosome. Thus half the sperms will have X chromosome and the other half will have Y chromosome.

A female has two X chromosome while no Y chromosome is present. So all the female gametes will have only X chromosomes. If a sperm carrying X chromosome fertilizes an ovum then a girl child will be born. If the sperm carrying Y chromosome fertilizes the ovule then a boy child will born.

So, the sex of the child depends on the male chromosome.

Thus the chromosomal difference between sperms and eggs of humans determine the sex of the child.