Aristotle's theory has some symmetry, as semen movements carry maleness while the menses carry femaleness. The theory has some symmetry, as semen movements carry maleness while the menses carry femaleness. The Church sees maleness and femaleness as two different ways of expressing common humanity (essence). Terra to Darkover in a relation of the same type as maleness to femaleness. The Victorians saw manliness as good, a form of control over maleness, which was brutish. Njinga reinforced this maleness by engaging in masculine pursuits. The maleness and sexism of the music press was a major issue for Sarah. The different hetero and homo modes of maleness are not, of course, biologically fixed. They can become a male by moral actions and sincere aspiration to maleness. She was also the first to discover that the Y chromosome determines maleness in mammals. Genital mutilation is thought to remove the female's residue of maleness. Some species (including humans) have a gene SRY on the Y chromosome that determines maleness. Besides the maleness inherited in the Y-chromosome there are no other found Y-linked characteristics. Violent sports such as football are fundamental in naturalizing the equation of maleness with violence. His maleness was not essential but functional.