How many Barr bodies would be found in each of the following...?

0 ⤊

How many Barr bodies would be found in each of the following...?

Klinefelter syndrome 1
Extra Y 2
Extra X 2
Turner syndrome 0

I just want to make sure I'm right. I am pretty sure the first and the last are right I am just not sure about the Extra Y and the Extra X, can someone help, please?

2007-10-29 19:03:00 · 1 answers · asked by lety 2 in Health ➔ Diseases & Conditions ➔ Infectious Diseases

1 answers

A Barr body is the inactive X chromosome of a pair of X chromosomes. Any person with only one X chromosome won't have a Barr body. So Turner syndrome (X0) will have none, extra X (XXX) will have 2, extra Y (XYY) will have none, and Klinefelter (XXY) will have 1.

2007-10-29 19:18:50 · answer #1 · answered by Howard H 7 · 0⤊ 0⤋