Analysis of information sources in references of the Wikipedia article "Sex linkage" in English language version.
Male-specific chromosomes provide the most straightforward cases of strict paternal inheritance. In the XY/XX sex chromosome system of mammals, sex is a paternally inherited factor because of the action of a single Y-linked gene. In humans, this gene is the SRY (sex-determining region Y), which encodes a transcription factor required for testis determination.
{{cite web}}
: Missing or empty |url=
(help){{cite journal}}
: Cite journal requires |journal=
(help)