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Question about pastel genetics...

dmac77 Oct 08, 2004 01:47 PM

Okay, so the pastel morph is a co-dom. morph, right? Correct me if I'm wrong, but that means a pastel bred to a normal will produce pastels? SOrry, but I'm still trying to wrap my head around all of the genetic fireworks happening in ball pythons right now...

Thanks for the info.

Dave.

Replies (10)

RoyalConstrictor Oct 08, 2004 02:35 PM

Yes a Pastel x Normal will produce pastels, but not all will be pastels. Percentage wise each baby has a 50% chance to become a pastel.

jrmiah Oct 08, 2004 03:06 PM

Think about it like this...

A pastel is het for super pastel.

Pastel X Normal will produce 50% het for super pastels (the hets will be the pastels, which is a visible trait because it is Co-Dominant.

Hope this helps.
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Jeremiah Kogon
http://www.morphcapital.com

CJBianco Oct 08, 2004 03:46 PM

So what is "Incomplete Dominance"?

Chris
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0.1 Normal
0.2 Het Piebald
1.0 Reduced Pattern
0.1 Banded
0.1 Screaming Child

jrmiah Oct 08, 2004 03:49 PM

incomplete dominance - A heterozygous condition in which both alleles at a gene locus are partially expressed, often producing an intermediate phenotype.
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Jeremiah Kogon
http://www.morphcapital.com

lilroach56 Oct 08, 2004 07:43 PM

Pastels are visible hets for super pastels making the super pastel morph incomplete dominance. As when both alleles are super pastel alleles they produce super pastels, and when one allele is a super pastel alele and the other is a normal they produce a pastel.

Co-dominance is when you have TWO seperate morphs and when you "combine" them you get an inbetween. Ie.

Leucistic and normal are co-dominant when "combined" they create piedbalds. That is what a co-dom is.

co-dominance:A condition in which both alleles of a gene pair in a heterozygote are fully expressed, with neither one being dominant or recessive to the other.
Red and white flowers make a red flower with white spots (or white flower with red spots). Shows parts of BOTH TRAITS.

incomplete dominance:A heterozygous condition in which both alleles at a gene locus are partially expressed, often producing an intermediate phenotype.
Red and white flowers make pink. Combines both traits to form something inbetween.
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0.1 "Tremper" looking Albino Leopard gecko (Lex)
0.0.1 tiger crested gecko (peachs)
0.1 Red blood python (Rhianon)
0.0.1 ball pythons (FELIX!!!!!)
2.1 Feral cats that we adopted (Fuzzy, Bear, and Tony)

My image Gallery
"scientia est vox"

coldthumb Oct 08, 2004 11:11 PM

""Leucistic and normal are co-dominant when "combined" they create piedbalds. That is what a co-dom is.""

DO WHAAAA ?
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3.12 Ball Pythons
0.1 Mutant Thayeri

jrmiah Oct 09, 2004 12:36 PM

Breeding a Leucistic and a normal will NOT give you pieds.
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Jeremiah Kogon
http://www.morphcapital.com

MarkS Oct 09, 2004 01:39 PM

You are right, you will not get pieds from breeding a normal to a Leucistic. I think he was using this as a hypothetical example to explain what the classical definition of co-dominant SHOULD look like.

The way I was taught in my biology classes the teacher used flowers as an example. If you bred a white flower to a red flower and the offspring came out as pink, this would be an example of incomplete dominance (a blending of the two traits). If the offspring came out as red and white blotched (both traits showing distinctly as themselves), this would be an example of co-dominant

Mark

>>Breeding a Leucistic and a normal will NOT give you pieds.
>>-----
>>Jeremiah Kogon
>>http://www.morphcapital.com

dmac77 Oct 08, 2004 09:01 PM

Thanks for the info. Helped out a lot. Only downside is that this makes me want a pastel even more.... lol. I still have to wait a while for that, though. Thanks again.

Dave

7s Oct 09, 2004 09:58 AM

I still haven't seen a super juxtaposed with a regular pastel. Anyone have pics so I can see the difference? Thanks.
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1.1 BPs (Syd and Nancy)
1.1 Het. Albinos (Bill and Beatrix)
0.2 French Lops (Lapine and Jacquotte)
0.0.2 Firebellied Toads (Stanley and Stuart)

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