A man with a certain disease marries a normal woman. They have eight children (3 daughters and 5 sons). All the daughters suffer from their father's disease but none of the sons is affected. What

Question

A man with a certain disease marries a normal woman. They have eight children (3 daughters and 5 sons). All the daughters suffer from their father's disease but none of the sons is affected. What will be the mode of inheritance of this disease?

TestHub · Accepted Answer

The daughters receive one X chromosome from the father and one X chromosome from the mother. Since all the daughters suffer from their father's disease, the X chromosome from the father must be carrying a dominant trait.

Zoology - Principles of Inheritance and Variation Question with Solution | TestHub

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