Understanding Genetics - Determine sex

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The sperm cell. In B.C.E., Aristotle proposed that the heat of the male partner during intercourse determined sex. At least in the case of reptiles, Aristotle was on to.

Categories: Brother sister sex

Comments:

By Mautilar - 09:46
A sex-determination system is a biological system that determines the development of sexual characteristics in an organism. Most organisms that create their.
By Kazraktilar - 14:19
Sexual differentiation in humans is the process of development of sex differences in humans. Chromosomal sex is determined at the time of fertilization; a chromosome from the sperm cell, either X or Y, fuses with the X chromosome in the.
By Yozshulkree - 02:43
Before modern technology could tell expectant parents the sex of their child, how did you tell whether you were carrying a boy or a girl? And even more.
By Kajisida - 00:01
Sex is determined by the presence or absence of certain chromosomes, and it differs between humans (mammals) and other members of the.
By Faelkree - 04:03
The X and Y chromosomes determine a person's sex. Most women are 46XX and most men are 46XY. Research suggests, however, that in a few births per.

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