Father is responsible for determination of sex of child and not the mo

1.	Father is responsible for determination of sex of child and not the mother. Justify.
Answer» 1. Human made is heterogame tic, i.e. he produces two different types of sperms. One is bearing X chromosome along with 22 autosomes and the other is Y bearing sperm with 22 autosomes. 2. Mother, on the other hand, is homogametic, producing all similar types of ova, i.e 22 + X chromosomal combination. 3. If 22+X bearing sperm fertilise an egg, female child is formed while if Y bearing sperm fertilizes an egg, male child is formed. 4. Thus the sex of the child is dependent upon type of sperm that father gives, therefore, it is said that father is responsible for determination of sex of a child and not the mother.

Father is responsible for determination of sex of child and not the mother. Justify.

Answer»

1. Human made is heterogame tic, i.e. he produces two different types of sperms. One is bearing X chromosome along with 22 autosomes and the other is Y bearing sperm with 22 autosomes.

2. Mother, on the other hand, is homogametic, producing all similar types of ova, i.e 22 + X chromosomal combination.

3. If 22+X bearing sperm fertilise an egg, female child is formed while if Y bearing sperm fertilizes an egg, male child is formed.

4. Thus the sex of the child is dependent upon type of sperm that father gives, therefore, it is said that father is responsible for determination of sex of a child and not the mother.

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