2020 · Q109
In human beings, the chromosomes that determine birth of a normal female child are
General KnowledgeBiology
- Aone X chromosome from mother and one X chromosome from father.
- Bone X chromosome from mother and one Y chromosome from father.
- Ctwo X chromosomes from mother and one X chromosome from father.
- Done X chromosome and one Y chromosome from father and one X chromosome from mother.
Explanation
A normal female child has two X chromosomes — one X inherited from the mother and one X from the father (the father contributes an X rather than a Y in this case). A Y chromosome from the father would produce a male child. The correct answer is one X from the mother and one X from the father.