Sex Chromosomes

Essay specific features

 

Issue:

Science

 

Written by:

Nancy P

 

Date added:

July 24, 2015

 

Level:

University

 

Grade:

A

 

No of pages / words:

3 / 694

 

Was viewed:

7070 times

 

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Essay content:

About one of every 500 males born has Klinefelter's syndrome. If a male gamete containing the Y chromosome fertilizes an egg containing no X chromosome, then that embryo will fail to develop because it is essential that every human must have at least one X chromosome. There appears to be just too much important genetic information on the X chromosome not to have one...
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There appears to be just too much important genetic information on the X chromosome not to have one. There are also special cases where, because of non-disjunction again, a woman can have 3 X chromosomes. These women are called triplo-X and can show tallness and have menstrual irregularities. Men who receive an X from their mother and a double Y from their fathers have an XYY combination and have a condition called Jacob's syndrome...
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