If the mother contributes X and the father contributes Y what will be the sex of the child?
Answer and explanation
Correct answer: Boy
For the usual human chromosomal system, the mother contributes an X chromosome in her egg, while the father contributes either X or Y in his sperm. Combining the given chromosomes gives X + Y = XY. The XY chromosomal combination is conventionally associated with a male child, so option A is correct. An XX combination would be associated with a female child; options C and D do not follow from the stated chromosome pair.
Frequently asked questions
What is the correct answer to this question?
Boy
Why is this the correct answer?
For the usual human chromosomal system, the mother contributes an X chromosome in her egg, while the father contributes either X or Y in his sperm. Combining the given chromosomes gives X + Y = XY. The XY chromosomal combination is conventionally associated with a male child, so option A is correct. An XX combination would be associated with a female child; options C and D do not follow from the stated chromosome pair.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Heredity and Evolution. Topic: Sex determination.
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