Abstract
SINCE hæmophilia and colour-blindness are both sex-linked conditions, the genes determining them may be expected to show linkage. That is to say, if a hæmophilic is colour-blind the majority of his hæmophilic relatives should be colour-blind, and the majority of his non-hæmophilic relatives should not be so. Similarly, if a non-hæmophilic brother of a hæmophilic is colour-blind, a majority of his hæmophilic brothers and other relatives should not be colour-blind; a majority of his non-hæmophilic brothers should be colour-blind, while most of his sisters should be transmitters of hæmophilia or colour-blindness, but not of both or neither.
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BELL, J., HALDANE, J. Linkage in Man. Nature 138, 759–760 (1936). https://doi.org/10.1038/138759b0
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DOI: https://doi.org/10.1038/138759b0
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