How the third genre came in to existance?

Since the male has the x and y chromosomes, there should be a male or a female but how the third genre came into existance. Kindly clarify

Expert Answers

An illustration of the letter 'A' in a speech bubbles

Normally, during meiosis, the sex cells divide properly so that a zygote either contains an XY or XX chromosome configuration. However, occasionally the cell division will occur when more or less chromosomal material ends up in the sex cells -- so that the cell contains more than one X chromosome or more than one Y chromosome, or only one X chromosome.  Any other configuration is fatal and the embryo will spontaneously abort. However, those individuals with "nonstandard" genetic makeup may have either no or diminished sexual characteristics, or traits of both male and female.  See the link for specific diseases:


See eNotes Ad-Free

Start your 48-hour free trial to get access to more than 30,000 additional guides and more than 350,000 Homework Help questions answered by our experts.

Get 48 Hours Free Access
Approved by eNotes Editorial