my following problem has something to do with Aneuploidy, Polyploidy, and/or Non-disjunction:
A normal vision woman whose father was color-blind marries a color-blind man. This couple has a color-blind son who is also mentally disabled and has poorly formed testes. Account for all phenotypes of the couple and their disabled son.
Please help. Thanks!
2007-02-25 14:37:30 · 2 answers · asked by muz53 2 in Science & Mathematics ➔ Biology
Okay, so I'm assuming color-blindness is a recessive trait. So the woman who has normal vision but who's father was color blind had to be heterozygous with those genes (Cc for example). If her son is colorblind he must be homozygous recessive (cc). The father was also color blind so he must also be homozygous recessive (cc).
I'm not sure how the other disabilities of the son were inherited but if they are simply inherited recessive traits, both parents must have been carriers.
2007-02-25 15:43:15 · answer #1 · answered by spidermilk666 6 · 0⤊ 1⤋
Suggest reading references on links below:
http://en.wikipedia.org/wiki/Aneuploidy
http://en.wikipedia.org/wiki/Polyploidy
http://en.wikipedia.org/wiki/Non-disjunction
http://en.wikipedia.org/wiki/Klinefelter_syndrome
Follow links on those pages...
Hope this helps!
2007-02-25 14:43:35 · answer #2 · answered by cfpops 5 · 0⤊ 0⤋