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terms???
- Thread starter jdub
- Start date
13mur 6
Junior Researcher, MSKCC
Hmm.... okies, I'll try to do this without confusing you too much.
Het is short for heterozygous, and means the corn is hiding a recessive gene, or one of it's gene pairs is a recessive gene over shadowed by a dominant gene.
Amelanistic, or amel, means no black pigment
Anerythristic, or anery, means no red pigment, there are two types, A and B. In my understanding A had some yellow pigment, while B had no yellow pigment (but it seems this is somewhat wrong, and yes it's confusing).
Hypo, or hypomelanistic means less black pigment, but still some showing.
Amel, Anery, and Hypo are all common recessive genes.
If you breed two het animals for the same type of het, you have a chance of getting baby snakes that are the full version of the het even if you don't have anything close to the het. (so a normal het anery bred with a amel het anery gives you chances of getting anery snakes, which are totally different looking from normals or amels).
Certain morphs are simple recessive genes, or combinations of them, Amel being the most popular I think (i.e. snows are Anery A + Amel in the same animal, Ghosts are Anery + Hypo in the same animal.)
Anything else you wanted to know? It's okay if your confused because even people who are into genetics have a hard time understanding stuff like this, since some things haven't completely been explained as of yet.
-13mur 6
Het is short for heterozygous, and means the corn is hiding a recessive gene, or one of it's gene pairs is a recessive gene over shadowed by a dominant gene.
Amelanistic, or amel, means no black pigment
Anerythristic, or anery, means no red pigment, there are two types, A and B. In my understanding A had some yellow pigment, while B had no yellow pigment (but it seems this is somewhat wrong, and yes it's confusing).
Hypo, or hypomelanistic means less black pigment, but still some showing.
Amel, Anery, and Hypo are all common recessive genes.
If you breed two het animals for the same type of het, you have a chance of getting baby snakes that are the full version of the het even if you don't have anything close to the het. (so a normal het anery bred with a amel het anery gives you chances of getting anery snakes, which are totally different looking from normals or amels).
Certain morphs are simple recessive genes, or combinations of them, Amel being the most popular I think (i.e. snows are Anery A + Amel in the same animal, Ghosts are Anery + Hypo in the same animal.)
Anything else you wanted to know? It's okay if your confused because even people who are into genetics have a hard time understanding stuff like this, since some things haven't completely been explained as of yet.
-13mur 6
Darin Chappell
Very Senior Hillbilly
"Het is short for heterozygous, and means the corn is hiding a recessive gene, or one of it's gene pairs is a recessive gene over shadowed by a dominant gene."
Real close, but not quite!
Actually, "heterozygous," when referring to genetic pairs at a particular locus (location on the DNA chain), simply refers to there being two different genes at the same locus. It is possible for an animal to have two dominant genes at the same locus, and there will be blending of some sort in the way the animal looks.
So, if you breed a motley to a normal, you get all normals het motley, because at that locus there are differing genes found (one normal and one motley). The animal looks normal and carries the motley gene, but that is not why it is "het" motley. It's "het" motley because it only has one motley gene at that locus. If Motley were co-dominant with the normal type, the animal would still be "het" motley, but it would exhibit a look that was somewhere between motley and normal
For example, motley and stripe are two genes that are recessive to the normal pattern, but they are co-dominant to one another. They also happen to be found on the same locus. If you breed a motley to a motley, BOTH parents pass down the motley gene at the required locus, and the offspring are all motley. The same is true for two striped parents. HOWEVER, because these two genes are co-dominant to one another, they cause a unique effect when breeding a motley to a stripe. You get a motley/stripe, which is somewhere between a striped and a motley. The animal is technically het for BOTH motley and stripe, even though BOTH genetic influences show through on the animal!
"Hetero" is Greek for "another of a different kind," and "homo" means "another of the same kind." So an animal is heterozygous if it has two different genes at one locus (regardless of whether those genes are dominant, co-dominant, or recessive), and it is homozygous for a trait is it carries a copy of that trait's gene in both positions of a particualr locus.
Hope that wasn't too geeky! I'm sure I have made some sort of a mistake, and I'm sure someone (read that as "Serp or Kat!") will set me straight on something! I would recommend Serpwidget's genetic tutorial for anyone wanting to understand more about cornsnake genetics and terminology.
Real close, but not quite!
Actually, "heterozygous," when referring to genetic pairs at a particular locus (location on the DNA chain), simply refers to there being two different genes at the same locus. It is possible for an animal to have two dominant genes at the same locus, and there will be blending of some sort in the way the animal looks.
So, if you breed a motley to a normal, you get all normals het motley, because at that locus there are differing genes found (one normal and one motley). The animal looks normal and carries the motley gene, but that is not why it is "het" motley. It's "het" motley because it only has one motley gene at that locus. If Motley were co-dominant with the normal type, the animal would still be "het" motley, but it would exhibit a look that was somewhere between motley and normal
For example, motley and stripe are two genes that are recessive to the normal pattern, but they are co-dominant to one another. They also happen to be found on the same locus. If you breed a motley to a motley, BOTH parents pass down the motley gene at the required locus, and the offspring are all motley. The same is true for two striped parents. HOWEVER, because these two genes are co-dominant to one another, they cause a unique effect when breeding a motley to a stripe. You get a motley/stripe, which is somewhere between a striped and a motley. The animal is technically het for BOTH motley and stripe, even though BOTH genetic influences show through on the animal!
"Hetero" is Greek for "another of a different kind," and "homo" means "another of the same kind." So an animal is heterozygous if it has two different genes at one locus (regardless of whether those genes are dominant, co-dominant, or recessive), and it is homozygous for a trait is it carries a copy of that trait's gene in both positions of a particualr locus.
Hope that wasn't too geeky! I'm sure I have made some sort of a mistake, and I'm sure someone (read that as "Serp or Kat!") will set me straight on something! I would recommend Serpwidget's genetic tutorial for anyone wanting to understand more about cornsnake genetics and terminology.
13mur 6
Junior Researcher, MSKCC
Oh I'm sorry, I guess my explanation was wrong since I contradicted myself back there when I was explaining snows and ghosts (since those are also het for their respective genotypes).
But yeah, Darin had a better explaination. I was just thinking too deep into it.
However, when people talk about how their snakes are het for this and het for that, they usually mean what I said, since apprarent hets are called something else.
-13mur 6
But yeah, Darin had a better explaination. I was just thinking too deep into it.
However, when people talk about how their snakes are het for this and het for that, they usually mean what I said, since apprarent hets are called something else.
-13mur 6
Darin Chappell
Very Senior Hillbilly
You might be a Hillbilly geek if . . .
Your idea of a pocket protector is a sheath for your skoal can . . .
You pull your pants up way too high, but it's because the hems are dragging through the cow manure otherwise . . .
You snort when you laugh, but it's because the moonshine makes you do it . . .
You take your cousin to homecoming, but it's because . . .well, you're a hillbilly . . .
Your hair is all slicked over, but it's because the water pressure from the hand pump can't get all that pesky shampoo out from last Saturday's bath time!
Sorry for the obvious Jeff Foxworthy rip off!
Your idea of a pocket protector is a sheath for your skoal can . . .
You pull your pants up way too high, but it's because the hems are dragging through the cow manure otherwise . . .
You snort when you laugh, but it's because the moonshine makes you do it . . .
You take your cousin to homecoming, but it's because . . .well, you're a hillbilly . . .
Your hair is all slicked over, but it's because the water pressure from the hand pump can't get all that pesky shampoo out from last Saturday's bath time!
Sorry for the obvious Jeff Foxworthy rip off!