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    How do hemophiliac parents pass the trait on to their offspring?

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    Explain why a woman carrying the gene for hemophilia can produce two hemophiliac sons when she mates with a normal male.

    What is the probability that a parent carrying a dominant trait will pass that trait on to each child?

    © BrainMass Inc. brainmass.com October 10, 2019, 5:16 am ad1c9bdddf
    https://brainmass.com/biology/genetics/hemophiliac-parents-pass-trait-offspring-499238

    Solution Preview

    Unlike dominant genetic diseases, hemophilia is not associated with somatic genes but rather sex-linked genes. There are two chromosomes that are sex-linked, the X and Y. Females have two X chromosomes (XX) and males have one X and one Y (XY). As a result, females who have a defective X chromosome have another which may compensate. Males only have one, therefore will present any deficits their X chromosome carries. This ...

    Solution Summary

    The expert explains why a women carrying the gene for hemophilia can produce two hemophiliac sons when she mates with a normal male. The probability that a parent carrying is dominant trait will pass that trait on to each child.

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