Posted by:
ChrisGilbert
at Fri Mar 2 13:47:29 2007 [ Email Message ] [ Show All Posts by ChrisGilbert ]
Animals are either Heterozygous, Homozygous or neither for any given mutation.
When a Homozygous animal is bred to a non-gene carrier all the offspring are Heterozygous (100%).
A Het X Homozygous produced half a litter of Homozygous and half a litter of Heterozygous animals (100% hets).
The 66% possible hets and 50% possible hets denote the chance those animals statistically have of being heterozygous.
A Het X Het pairing will produce 1/4 Homozygous animals. The remaining 3/4 of the litter are 2/3 hets and 1/3 non-carriers. Because 2/3 of those are hets, but you can't tell which ones are, we say they have a 66.6% Chance of being hets, aka they are 66% possible hets.
Breeding a Het X non-carrier produces statistically 1/2 hets and 1/2 non-carriers. Because you can not differentiate between the two we say that the offspring have a 50% possible chance of being hets.
[ Hide Replies ]
- Making Hets.... - lizliz710, Fri Mar 2 13:17:06 2007
- RE: Making Hets.... - rainbowsrus, Fri Mar 2 13:29:06 2007
 RE: Making Hets.... - ChrisGilbert, Fri Mar 2 13:47:29 2007
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