其中只有30個基因位於Y染色體
http://www.jhrsonline.org/article.asp?issn=0974-1208;year=2013;volume=6;issue=3;spage=176;epage=182;aulast=Esteves
Spermatogenesis starts in adolescence and is controlled by genetic factors. It has been estimated that 2000 genes are essential for the full process to be completed; of these, only 30 genes are present in the Y chromosome. [12],[13]
男性不孕症之相關檢查
Table 1: Genetic tests in unexplained male infertility
