Reptile & Amphibian Forums

We got this BCI male boa a few years ago, sold to us as 'het for stripe.' Recently we were told there is no het stripe and the gene is dominant...so we are wondering what it is we have. He has a very crisp beautiful pattern and really red tail, so we wonder if hes been inbred with BCC? Any info about what you see in him and about the stripe gene would be great.

As far as I know Kahl Stripe gene is still thought to be Recessive.

Therefore you can have what most know as a het.

In true genetics any reproducible mutant trait will Heterozygous and Homozygous offspring
If its a dominant type trait the Het is a visible trait like you see with Arabesque ,Motley , Jungle , Aztec,etc . . .
The Super forms of these traits are Homozygous they each have two alleles for the given trait.
Here is an explanation I once made about Hypo Boas and
it can apply across the board.

The only difference is with Recessive traits the Heterozygous form carries one Allele for the mutatant trait but that
Allele is not Dominant over the wild type Allele.

Therefore an animal carrying the Recessive trait will be
non visually expressed in the Heterozygous form.

Look at next post for hypo explanation which is really all
around meaningful to all traits

. . . Lar M
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Boas By Klevitz

I Support USark.org

Hypo stands for Hypomelanistic

Hypomelanism is the reduction of melanin or black/dark pigment

Hypo Boas are Genetically dominant which means when bred to another
normal or wild type Boa you will produce approx half a litter or Normal
type Boas and half a litter of Hypo Boas

Also every Boa carries two Alleles a normal or wild type Boa will have 2 normal Alleles

When you breed any Boa each Boa parent passes one of its 2 Alleles on to the babies

So each parent contributes 1 Allele

So the Boa showing the Hypo trait has 1 normal Allele and 1 mutant Hypo Allele

The mutant Allele is Dominant over the normal Allele so the hypo trait
is visible because of this Dominant mutant hypo allele

When Bred to a normal the Hypo will pass a mutant hypo Allele to about half the litter of babies

In this form 1 mutant Allele and 1 wild type it is in the heterozygous form

When you breed 2 Hypo Boas together ( both in the heterozygous form) you will produce

25% normal type ( 2 normal Alleles )

50% Hypo ( 1 normal Allele and 1 mutant Hypo Allele )

25% Super Hypo or more correctly called Homozygous Hypo ( 2 mutant Hypo Alleles )

When you breed a Homozygous Hypo or Super Hypo as its called
in the Boa world to a normal Boa

The Super Hypo will pass 1 of its 2 Hypo Alleles on to every baby

Producing a full litter of Heterozygous Hypo Boas

or

as the Boa world calls them normal Hypo Boas

. . . Lar M

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Boas By Klevitz

I Support USark.org

Thanks for taking the time to reply, and for the thorough explanation. Does he look like a BCI het?

Kahl stripe is considered a recessive trait , therefore its impossible
to distinguish a Heterozygous from a wild type.

If he was purchased as a Het for Stripe there 's a pretty good chance he is just that.

Pairing it up with another heterozygous from the kahl stripe line
or a homozygous Kahl stripe line animal will prove or disprove
his being heterozygous for the Kahl stripe trait.

. . . Lar M
-----
Boas By Klevitz

I Support USark.org

>Hypo Boas are Genetically dominant which means when bred to another
>normal or wild type Boa you will produce approx half a litter or Normal
>type Boas and half a litter of Hypo Boas

"Hypo Boas are Genetically dominant ..." would be better expressed as the hypo mutant GENE is dominant to the corresponding wild type (= normal) GENE.

The wild type gene is the standard of comparison. Whether a mutant gene is dominant, codominant, or recessive to the wild type gene depends on what an animal with a mutant gene paired with a normal gene looks like.

The animal looks like one with two normal genes. The mutant gene is recessive to the normal gene.

The animal looks like one with two mutant genes. The mutant gene is dominant to the normal gene.

The animal doesn't look like one with two normal genes and doesn't look like one with two mutant genes. The mutant gene is codominant to the normal gene.

From what the breeders say, they often cannot look at a hypo boa and tell whether it has one hypo gene or two hypo genes. This fits in the definition for a dominant mutant gene better than the definition of a codominant mutant gene.

could you get close up pics of the head side of the body and top I dont know if anyone else noticed but two of the ladders are connected might be a possible jungle but need to see the head and body patterns in full
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2 triple het sharps m/f who are the ones who started this mess with me(joking)
1 motley with attitude awesome girl
1 sharp anery albino awesome girl
1 ghost f
1 awesome jungle het anery m
2 t-pos hypo het bloods m f
1 t-pos het blood f
hmmmmmm wonder what im up to lmao and I owe it all to my friends thanks to Reptile Shop Jeff Ronne and Albert
1 fridge with beer in it who's coming over lol

He has two tail saddles connected, here are some more pics

head shot