XX male syndrome
Definition
XX male syndrome occurs when the affected individual appears as a normal male, but has female chromosomes. Two types of XX male syndrome can occur: those with detectable SRY gene and those without detectable SRY (Sex determining region Y). SRY is the main genetic switch for determining that a developing embryo will become male.
Description
XX male syndrome is a condition in which the sex chromosomes of an individual do not agree with the physical sex of the affected person. Normally there are 46 chromosomes, or 23 pairs of chromosomes, in each cell. The first 22 pairs are the same in men and women. The last pair, the sex chromosomes, is two X...
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