True statement about inheritance of an X-linked recessive trait is:
Correct Answer: 50% of boys of carrier mother are affected
Description: For a X-linked recessive disease: If mother is a carrier: If father is diseased: 50% of boys of carrier mothers are affected All daughters are carriers Mothers transmit defective gene to 50% of the sons (diseased) as well as daughters (carriers) Fathers transmit defective gene to daughters
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Pediatrics
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