A man who is suffering from a recessive X-linked disease marries a normal woman. What is true about their progeny?

All sons are diseased.

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All daughters are diseased.

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All sons are normal.

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None of the above.

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Solution

The correct option is B All sons are normal.
In such a case, all sons will be normal because the X linked genes in sons will be inherited from mother, whose genes are not defective.

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A man who is suffering from a recessive X-linked disease marries a normal woman. What is true about their progeny?

The correct option is B All sons are normal.In such a case, all sons will be normal because the X linked genes in sons will be inherited from mother, whose genes are not defective.

The correct option is B All sons are normal.
In such a case, all sons will be normal because the X linked genes in sons will be inherited from mother, whose genes are not defective.