Posted by:
Paul Hollander
at Mon Sep 11 19:46:53 2006 [ Email Message ] [ Show All Posts by Paul Hollander ]
>i read boa genetics now i have a couple of questions to help me understand....
1. # Super Sunglow Homozygous Albino / Homozygous Hypomelanistic
is this a snake that is visually albino het for hypo crossed with a snake that is visually hypo het for albino??
An x is usually the symbol for a mating rather than a /.
Super Sunglow Homozygous Albino. To me, super sunglow is equivalent to homozygous salmon (AKA hypo) homozygous albino. So super sunglow homozygous albino would be equivalent to homozygous salmon homozygous albino homozygous albino. A second "homozygous albino" is unnecessary. This snake would have a pair of salmon mutant genes and a pair of albino mutant genes. It would show the salmon appearance, possibly the extreme form called "super salmon". It would also show the albino visual appearance.
Homozygous Hypomelanistic. This snake would have a pair of salmon mutant genes. It would show the salmon appearance, possibly the extreme form called "super salmon". I don't see any evidence that this is heterozygous albino in the listing.
A sunglow would be visually albino het for salmon (hypo). A snake that is visually hypo het for albino is probably a heterozygous salmon heterozygous albino, what the trade calls double het for sunglow.
>2. are all salmons dominant???
I'm not sure what this question means. But here is my answer to what I think it means.
All salmon boa constrictors have at least one copy of the same salmon mutant gene. The salmon mutant gene is dominant to the normal gene. The number of salmon mutant genes in a gene pair has nothing to do with whether or not salmon is a dominant mutant gene.
>3. if so then if you cross a salmon het for albino with an albino would you get salmon sunglows??? and if so what would the percentages be.
A sunglow is a salmon that is also albino. Seems to me that "salmon sunglow" is redundant.
Heterozygous salmon heterozygous albino (AKA DH sunglow) x albino -->
1/4 Heterozygous salmon heterozygous albino (AKA DH sunglow)
1/4 Heterozygous salmon albino = sunglow
1/4 heterozygous albino (looks normal)
1/4 albino
Hope this helps.
Paul Hollander
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RE: okay... now I'm really confused - Paul Hollander, Mon Sep 11 19:46:53 2006
