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Y chromosome

   Also found in: Medical, Financial, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
Y-chro·mo·some or Y chromosome (wkrm-sm)
n.
The sex chromosome associated with male characteristics in mammals, not occurring in females and occurring with one X-chromosome in the male sex-chromosome pair.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.Y chromosome - the sex chromosome that is carried by men; "human males normally have one X chromosome and one Y chromosome"
sex chromosome - (genetics) a chromosome that determines the sex of an individual; "mammals normally have two sex chromosomes"


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Scientists at Penn State University (PSU) found that the male Y chromosome evolved at a much more rapid pace than X chromosome, which both males and females carry.
So if the Y chromosome from a man fertilizes the egg, She will get pregnant with a baby boy.
In this condition, the development of XY over XX embryos is affected because the presence of the Y chromosome sets the embryo on a path of male reproductive development that remains incomplete due to a lack of functional androgen receptors.
 
 
 
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