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Southwestern Center for Herpetological Research

Double co-dom bred to normal results??

steelersdiehard Jun 22, 2006 10:36 AM

If you have a snake with two visible co-dom genes and breed to a normal what will you produce??

Thanks

Replies (3)

pizzacoolio Jun 22, 2006 10:40 AM

you can produce another double, a bumble-bee bred to a normal has a 1 in 4 chance of producing another bee.

LKirkland Jun 22, 2006 12:40 PM

Don't beat me up if I miss it. Each egg has the following probabilities:

25% normal
25% co-dom A
25% co-dom B
25% co-dom AB
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Louis Kirkland
Cornerstone Reptiles

RandyRemington Jun 22, 2006 10:12 PM

Most likely right. It's basically double het X normal except that you can see the hets for each or both.

The less likely complications would be if the two genes just happened to be close together on the same chromosome. There are a limited number of chromosomes and lots of mutations so we are likely to run into this eventually even if it isn’t particularly likely for any two given mutations. Then your production would be close to 50% A and 50% B. And if A and B turned out to be two mutations of the same exact gene (alleles) then it would always be 50/50.

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