Unformatted text preview: Suppose: X = color vision x = colorblind The Retina of a heterozygous (Xx) female will have some cells with the "X" inactivated and other cells with the "x" inactivated. A heterozygous carrier of red-green colorblindness has some colorblind cells in her retina. The non-colorblind cells enable her to see color. Turner's syndrome is an abnormality in females where there is only one X chromosome; the other is missing. These people have abnormalities that will be discussed in the next chapter. Why aren't Turners syndrome females normal? Evidence indicates that some genes in the Barr body remain active. Their DNA is uncoiled and extends from the Barr body. If the Barr bodies of a normal female were missing, she would exhibit Turners Syndrome....
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- Fall '10
- Biology, X chromosome, sweat glands, Color blindness, X-inactivation, Turners, normal sweat glands