X linked diseases

[Kysa]

Hello guys.First post wooho!

So yeah, I know that female mammalians randomly inactivate one X chromosome in somatic cells.So, if a human female is a daltonism carrier, shouldn't she be half daltonic because ~1/2 of her cells in retina will have recessive allele and other ~1/2 will have dominant allele?.Or ~1/2 is not enough to cause colour blindness?And I'd like to know if it's true with other X linked diseases.

Edited January 3, 2013 by Kysa