Reptile & Amphibian Forums

I have a question ive been looking at hypo brbs and my question is how can there be hets for hypo are brbs way diff then bcis which you cant have het for hypo they either are or they are not just curious thank you for any info its just for 3-5k a pair where one is a hypo and one is hets id thought id ask

In BCI hypo is a dominant trait so the hetrozygous and homozygous forms both basically look the same.

In BRB's hypo is a simple recessive trait so it is only visible in the homozygous form. So if you breed a hypo to a het hypo you could expect to get roughly 50%hypo's and 50%het for hypo's.

Hope that helps.

Sean.
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1.1 BRB
1.1 Triple Het TPRS's
0.1 Silver TPRS
1.1 Amel Bloodred Corns
0.1 Abbott Okeetee Corn
0.1 Blizzard Bloodred Corn
1.1 Thayeri Kingsnakes
0.1 Reeve's Turtle
0.2 Amstaff's
1.0 Pudytat

that does help

Just to add to what Sean said, to distinguish the het and homo genotypes for a hypo BCI, normally the term "Super Hypo" is used
for a proven homozygous snake. Otherwise (proven het or unknown), the just "hypo" is normally used. Then you also see
"probably super" sometimes...

Having said that, I think there are some who believe that
hypo in BCI is incompletely dominant or co-dominant, and that
there can be a phenotypical difference between super hypos and regular hypos.

It can get pretty confusing for sure!

Thanks,
Ed

>>In BCI hypo is a dominant trait so the hetrozygous and homozygous forms both basically look the same.
>>
>>In BRB's hypo is a simple recessive trait so it is only visible in the homozygous form. So if you breed a hypo to a het hypo you could expect to get roughly 50%hypo's and 50%het for hypo's.
>>
>>Hope that helps.
>>
>>Sean.
>>-----
>>1.1 BRB
>>1.1 Triple Het TPRS's
>>0.1 Silver TPRS
>>1.1 Amel Bloodred Corns
>>0.1 Abbott Okeetee Corn
>>0.1 Blizzard Bloodred Corn
>>1.1 Thayeri Kingsnakes
>>0.1 Reeve's Turtle
>>0.2 Amstaff's
>>1.0 Pudytat

My take - is that with BRB it is a recessive gene - based on current knowledge on this trait.

Thus, Hypo to Hypo should be 100% Hypo, Hypo to Het should be 50% hypo and 50% Het, Het to Het should be 25% hypo, 50% het and 25% Normal. A normal looking BRB out of a Het to Het breeding will be a 66% CHANCE Het - as it is not a hypo it has a 2 out of three chance on being a true Het.

This is all based on proven hypo line that we know about - ther may be some other funky stuff out there.
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Mike

7.13 BRB
1.2 Spotted Python
1.0 Cal. King