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    Hen Reproduction Sex Ratio

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    Rarely, hens reverse phenotypic (not chromosomal dew late in life and develop into sperm producing males. If such a male were to be mated to a normal female, what sex ratio would be expected among the offspring? (Eggs with no X chromosome do not hatch.)

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    Solution Preview

    To answer this question you first need to realize that birds have the reverse setup for sex chromosomes and gender as mammals.

    Mammals: Males are XY, Females are XX

    Birds: Males are XX, Females are XY

    So, if we have a hen ...

    Solution Summary

    This solution provides assistance determining what sex ratio would be expected among the offspring given the information below.