The sex of a child is determined by :

(a) the presence of an X chromosome in egg (or ovum).

(b) the presence of a Y chromosome in sperm.

(c) the age of father and mother.

(d) the length of the mother's pregnancy.

Open in App

Solution

(b) the presence of a Y chromosome in sperm.

Suggest Corrections

Similar questions

Q. The sex of a baby is determined by which egg gets fertilized- one containing the X chromosome or one containing the Y chromosome. Do you agree? Give reasons.

What will be the sex of the child born :

(a) if X chromosome carrying sperm fertilizes an ovum containing X chromosome?

(b) if Y chromosome carrying sperm fertilizes an ovum containing X chromosome?

Question 7
The maleness of a child is determined by

(a) the X chromosome in the zygote
(b) the Y chromosome in the zygote
(c) the cytoplasm of the germ cell which determines the sex
(d) sex is determined by chance

Question 8
A zygote which has an X-chromosome inherited from the father will develop into a

(a) boy
(b) girl
(c) X- chromosome does not determine the sex of a child
(d) either boy or girl

Q. Name of the following:
Appearance of a trait due to the presence of an allele exclusively on either the X chromosome or on the Y chromosome.

Join BYJU'S Learning Program

The sex of a child is determined by : (a) the presence of an X chromosome in egg (or ovum). (b) the presence of a Y chromosome in sperm. (c) the age of father and mother. (d) the length of the mother's pregnancy.

(b) the presence of a Y chromosome in sperm.

The sex of a child is determined by :

(a) the presence of an X chromosome in egg (or ovum).

(b) the presence of a Y chromosome in sperm.

(c) the age of father and mother.

(d) the length of the mother's pregnancy.