SATHEE: Principles of Inheritance and Variation Question 8

Principles of Inheritance and Variation Question 8

8. A woman has an X-linked condition on one of her $X$ chromosomes. This chromosome can be inherited by

(a) Only daughters

(b) Only sons

(d) Only grandchildren

Show Answer

Answer : c

Hints & Solution

$\begin{matrix} X^{c} X \times X Y \\ ↓ \\ X^{c} X X^{c} Y X X X Y \end{matrix}$ Sex-linked diseases are passed down through families through one of the $X$ or $Y$ chromosomes. $X$ and $Y$ are sex chromosomes. Dominant inheritance occurs when an abnormal gene from one parent causes disease, even though the matching gene from the other parent is normal.

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Principles of Inheritance and Variation Question 8

8. A woman has an X-linked condition on one of her X chromosomes. This chromosome can be inherited by

Answer : c

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8. A woman has an X-linked condition on one of her $X$ chromosomes. This chromosome can be inherited by