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Old 10-20-2005, 01:49 PM   #1 (permalink)
The_FD
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Default XX or XY girl or boy

Hi there

well as far as I can remember Pluiepoco wanted to create a medicine forum because he is interested in sciences, he let me know he would like me to give some explanations as I plan to be a scientist in a couple of year . Unfortunately I still had no time to post anything in here. So I am giving a first try (very basic level I guess most of you know it all) with this, but I bet it would be more efficient if people around would ask the questions tiggering them.

This is about determining the sex of the baby since his/her genes...

Human people have 23 different chromom pairs. In the 22 first pairs there is one chromosom coming fom the mom and the other one from the dad. The last pair is called "sexual pair" because it define the sex of the baby.
That is:
- the baby gets a X chromosome from his/her mother at all times
- the one from the dad is whether a X or a Y chromosome

If the baby gets the X from the father she will be told XX and then will be a girl
if he gets the Y the baby is going to be XY and then is a boy


Just wondering if somebody is interested, since I guess everybody knows that
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