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warrior1

(12,325 posts) Thu Jan 10, 2013, 03:26 PM Jan 2013

We Were All Female

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We Were All Female (Original Post) warrior1 Jan 2013 OP

Agree with the thought, but Power to the Penis! RedCloud Jan 2013 #1

RedCloud

(9,230 posts)

1. Agree with the thought, but Power to the Penis!

Reply to warrior1 (Original post)

Thu Jan 10, 2013, 04:37 PM

Jan 2013

http://biology.about.com/od/basicgenetics/p/chromosgender.htm

Sex Chromosomes X-Y:

The male gametes or sperm cells in humans and other mammals are heterogametic and contain one of two types of sex chromosomes. They are either X or Y. The female gametes or eggs however, contain only the X sex chromosome and are homogametic. The sperm cell determines the sex of an individual in this case. If a sperm cell containing an X chromosome fertilizes an egg, the resulting zygote will be XX or female. If the sperm cell contains a Y chromosome, then the resulting zygote will be XY or male.

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