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Sex Determination in Humans

Sex of a chil...

Question

Sex of a child is due to

A

Size of ovum

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B

Health of father

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C

Sex chromosome of father/ sperm

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D

Sex chromosome of mother/ ovum

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Solution

The correct option is C Sex chromosome of father/ sperm
In the XY sex-determination system, the female-provided ovum contributes an X chromosome and the male-provided sperm contributes either an X chromosome or a Y chromosome, resulting in female (XX) or male (XY) offspring, respectively.
So, the correct answer is 'Sex chromosome of father/ sperm'.

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Similar questions

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.

A boy child is born when it inherits …………..chromosome from father and ………….. chromosome from mother.

Q. A girl child is born when she inherits ______ chromosome from father and ________ chromosome from mother.

Q. Question 1
The belief that the mother is completely responsible for the sex of the child is wrong because the child

(a) Gets sex chromosome only from the mother.
(b) Develops in the body of the mother.
(c) Gets one sex chromosome from the mother and the other from the father
(d) Gets sex chromosome only from the father

Q. (a) If a sperm with 'X' chromosome fertilizes with an ovum with 'X' chromosome, what will be the gender of the baby?
(b) Who determines the sex/gender of the baby, mother or father?
(c) Is it correct to blame the mother for giving birth to a baby girl?
(d) Are all our characters resembles our parents?

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