Genetics questions you were afraid to ask...

[GlasgowGecko]

Originally Posted by intravenous

Yes, I guessed you were having a laugh . That was my attempt at humour...I obviously fail . On a more serious note though...I know what all those terms mean but who in their right mind would actually know that unless they were a)writing a paper on it or b) researching a paper on it ?

Edit: oh and...evolutionary genetics make me cry .

In answer to your question, A - i'm writing a paper on it.....

Andy

[repkid]

Is ivory in pituophis recessive, codom or dom?

If its codom or dom, and I bred to an albino which I'm guessing is recessive to ivory,

Would I get:
50%normal ph ivory and albino
50%ivory ph albino?

And if it's recessive then I would get
100%normals ph ivory and bull?

[Ssthisto]

It looks like "Ivory" in bull snakes may well be a combination trait - "Hypo Whitesided" - both of which appear to be recessive. Breed an Ivory to an Albino and you'd get 100% Normal het Hypo, Albino and Whitesided.

[repkid]

Originally Posted by Ssthisto

It looks like "Ivory" in bull snakes may well be a combination trait - "Hypo Whitesided" - both of which appear to be recessive. Breed an Ivory to an Albino and you'd get 100% Normal het Hypo, Albino and Whitesided.

How does that work?

If it is codom then it only needs one copy to be visual. There's a 50% chance it will pass it on right? So wont it be 25% ivory and 75% normal?

[intravenous]

Originally Posted by repkid

How does that work?

If it is codom then it only needs one copy to be visual. There's a 50% chance it will pass it on right? So wont it be 25% ivory and 75% normal?

A "codominant" morph is different from a "combination" morph. As you said if it was codominant then it would only need one copy to be visual and an ivory would produce 50% ivorys and 50% normals. However, a combination morph is a morph that is made up of more than one trait. Ivory is a "combination" morph because it is made up two traits: the "hypo" trait and the "whitesided" trait (I am going by Ssthistos information, I don't personally know anything about bull morphs). In this case both of the traits are recessive.

[repkid]

Originally Posted by intravenous

A "codominant" morph is different from a "combination" morph. As you said if it was codominant then it would only need one copy to be visual and an ivory would produce 50% ivorys and 50% normals. However, a combination morph is a morph that is made up of more than one trait. Ivory is a "combination" morph because it is made up two traits: the "hypo" trait and the "whitesided" trait (I am going by Ssthistos information, I don't personally know anything about bull morphs). In this case both of the traits are recessive.

Oh right Ok then.

What would you recommend breeding my albino pinbull to?

Apart from another albino as I want some different.

[intravenous]

Originally Posted by repkid

Oh right Ok then.

What would you recommend breeding my albino pinbull to?

Apart from another albino as I want some different.

Since albino is recessive, if your animal has no hets, then all you can get is more albinos (unless there are co-dominant or dominant bull morphs and from the quick look I've had I don't think there are any?). If you want something different then you could get a different morph and breed it to your albino producing all normals. If you then bred the offspring together then you would get something different: a combination morph.

[repkid]

Originally Posted by intravenous

Since albino is recessive, if your animal has no hets, then all you can get is more albinos (unless there are co-dominant or dominant bull morphs and from the quick look I've had I don't think there are any?). If you want something different then you could get a different morph and breed it to your albino producing all normals. If you then bred the offspring together then you would get something different: a combination morph.

Alright cheers for the help.

[repkid]

Are lesser platinum and pinstripe royal pythons recessive, codom or dom?

[Blackecho]

Co-Dom and Dom respectively.