Y linkage
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In mammals, Y-linkage refers to when a phenotypic trait is determined by an allele (or gene) on the Y chromosome.
The Y-chromosome is small and does not contain many genes, therefore few traits are Y-linked, and so Y-linked diseases are rare. As only males have a Y chromosome, the genes are simply passed from father to son, with no interchromosomal genetic recombination.
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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
