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Politics : View from the Center and Left -- Ignore unavailable to you. Want to Upgrade?

To: Wharf Rat who wrote (467539)	2/11/2021 2:46:14 PM
From: TigerPaw	Respond to of 540724

There is good correlation with chromosomes and that which is checked when filling out birth certificates. There are all sorts of exceptions that can happen however, including a phenomena where and X & Y chromosome combine (actually one tags along on the end of another). This can lead to cases where an individual has XXY or three sex chromosomes. So long as the X is attached to the Y the combo acts in the body mostly as XX (female) but under the influence of hormones during puberty the combined chromosome can break away during cell divisions leading to a free standing X chromosome and the individual begins to manifest male traits after a youth as a female.