Medical Definition of Y-linkage
Y-linkage: The presence of a gene on the Y chromosome. Y-linkage is analogous to X-linkage (the presence of a gene on the X chromosome) in that it says a gene is on one of the sex chromosomes.
It has often been said that little is known about Y-linkage. This is no longer true. As of the year 2012, about 3 dozen genes were known to be Y-linked including:
Last Editorial Review: 7/1/2016
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