Reptile & Amphibian Forums

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jake

my addiction:
0.0.2 normal ball pythons (lazlo and izzy)
1.0 amelenistic corn snake (zyklon)
0.1 blizzard corn (blizz)
hybrid breeders association
hybrid haven

From Nerd:

Codominant - a gene that causes the homozygous form to look different than the wild-type and the heterozygous form to have traits of both.
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Tosha

"Nihil facimus sed id bene facimus"

6.42.0 Ball Python (Harry and Fluffy and gang)
1.0.0 Angolan Python (Anakin Skywalker)
0.0.1 Green Tree Python (Verdi)
0.1.0 Bredls Python (Smurfette)
0.2.0 Feline (Pippen and Pandora)
0.0.1 Desert Tortoise (Pope John Paul aka JP )
2.2.1 Fish (1,2,3,4)
0.0.0 frogs rescued from pool skimmer
0.0.1 Lizard of unknown origin

There are two different versions of the same gene. Call them A and a. A snake with two A genes (AA) and a snake with two a genes (aa) do not look alike. The third possible arrangement of genes is an A paired with an a gene (Aa).

The normal or wild type gene is the one most commonly found in the wild. A snake that has all normal genes shows the appearance most commonly seen in the wild. It's a normal snake. A mutant gene somehow changes the appearance of the snake from normal. A mutant gene can be recessive, dominant, or codominant to the normal version of the gene.

Recessive mutant gene - The A gene is the one most commonly found in the wild. It is the normal gene. The a gene is the mutant gene, and an aa snake does not look normal. An Aa snake looks like an AA (normal) snake. Example - albino in the ball python.

Dominant mutant gene - The a gene is the one most commonly found in the wild. It is the normal gene. The A gene is the mutant gene, and an AA snake does not look normal. An Aa snake looks like an AA (abnormal) snake. No good examples in ball pythons known yet. The spider mutant gene may be dominant to the normal version of the gene, but we aren't certain, yet.

Codominant mutant gene - The a gene is the one most commonly found in the wild. It is the normal gene. The A gene is the mutant gene, and an AA snake does not look normal. An Aa snake does not look like either an AA or an aa snake. An Aa snake may be more or less intermediate between an AA snake and an aa snake, or it may differ from the AA and aa snakes in some other way. Example - pastel in the ball python.

Hope this helps.

Paul Hollander

I thought I understood genetics.........
Are you purposely trying to confuse people???.......just a wee bit technical for me.

Actually, I should have just directed the original poster to Markus Jayne's site. That would have saved me some time but would have cost you a laugh.

Paul Hollander
Breeding results with dominant, recessive, and codominant mutant genes.

now that i understand i think i might buy a pastel.
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jake

my addiction:
0.0.2 normal ball pythons (lazlo and izzy)
1.0 amelenistic corn snake (zyklon)
0.1 blizzard corn (blizz)
hybrid breeders association
hybrid haven

>>I thought I understood genetics.........
>>Are you purposely trying to confuse people???.......just a wee bit technical for me.

Right before I read your message of it being too "technical", I was thinking to myself that he did a pretty good (but wordy) job of explaining it in lay terms. I guess this shows that some people are visual leaners, some kinesthetic learners, and some are learners by reading!
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Jeremy Conrad
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...Can't...stop...must...get...more...balls...

I guess this shows that some people are visual leaners, some kinesthetic learners, and some are learners by reading!

Have you been reading Dr. Dawna Markova? Your comments sound like her, but her three types of learning are visual, kinesthetic, and auditory. Someone who learns by reading would be a visual learner in her system.

Bill
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It's not how many snakes you have. It's how happy and healthy you can keep them.