WHO | Gender and Genetics - Genetic sex determination

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What determines whether an individual will be a male or a female? It turns out that there is no simple answer to this question, because over the course of. A sex-determination system is a biological system that determines the development of sexual characteristics in an organism. Most organisms that create their offspring using sexual reproduction have two sexes. Occasionally, there are hermaphrodites.

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By Samudal - 01:22
A sex-determination system is a biological system that determines the development of sexual In many species, sex determination is genetic: males and females have different alleles or even different genes that specify their sexual.
By Vudoll - 06:11
By Katherine J. Wu figures by Daniel Utter. Let's talk about sex. Seriously. Not intercourse, though – more about how genetic sex is.
By Maugal - 14:16
In mammals, primary sex determination is strictly chromosomal and is not usually The Y chromosome carries a gene that encodes a testis-determining factor.
By Kagara - 13:22
Sex can be determined by environmental cues (such as temperature), or genetically. Genetic sex determination occurs when an inherited difference in genes or.
By Daikazahn - 01:26
Gender and Genetics. Genetic Components of Sex and Gender. Humans are born with 46 chromosomes in 23 pairs. The X and Y chromosomes determine a.

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