Add Papers Marked0
Paper checked off!

Marked works

Viewed0

Viewed works

Shopping Cart0
Paper added to shopping cart!

Shopping Cart

Register Now

internet library
Atlants.lv library
FAQ
1,99 € Add to cart
Add to Wish List
Want cheaper?
ID number:234944
 
Evaluation:
Published: 01.12.1996.
Language: English
Level: Secondary school
Literature: n/a
References: Not used
Extract

Determining Sex:
What determines a child's sex? Usually it is the sex chromosomes in which two X chromosomes in the nucleus of its original egg cell and it will become a female; a Y and an X chromosome and it will become a male. An egg will have at least one female determining X chromosome. A sperm cell, however, may contain either an X chromosome or a Y chromosome. If the fertilizing sperm cell contains an X chromosome, the egg will develop into a female. If it contains a Y chromosome, it will develop into a male. …

Load more similar papers

Atlants

Choose Authorization Method

Email & Password

Email & Password

Wrong e-mail adress or password!
Log In

Forgot your password?

Draugiem.pase
Facebook

Not registered yet?

Register and redeem free papers!

To receive free papers from Atlants.com it is necessary to register. It's quick and will only take a few seconds.

If you have already registered, simply to access the free content.

Cancel Register