X-chromosome genes {DAX gene} can tend to suppress SRY gene {sex-chromosome drive}. Y-chromosome is too small to reduce such suppression.
Maleness or femaleness genes {sexually antagonistic gene} cluster together and do not work in other sex. Maleness or femaleness genes are in different chromosomes in birds and mammals.
Y-chromosome genes {Sry gene} can control testes development and so testosterone production. Sry gene starts masculinization. Human SRY differs greatly from ape SRY, but has had few mutations.
Outline of Knowledge Database Home Page
Description of Outline of Knowledge Database
Date Modified: 2022.0225