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Percents

henry2009

henry2009

New member
When a snake is 66 percent for say stripe does that mean that it carries the gene but theres a 66 percent chance it will show up, or does it mean there is only a 66 percent chance it has the gene. Meaning it might not even have the gene.
 
Here's the genetic explaination.

Say you breed a normal het stripe x normal het stripe. I will use a (A) to represent the stripe allele
AA=normal....Aa=Normal het stripe...aa=Stripe

Offspring take 1 allele from each parent

Aa x Aa, when the offspring take 1 allele from each parent, the results are as follows
(These can be derived from using FOIL, or a punnet square)
AA (normal), Aa (normal het stripe), Aa (normal het stripe), and aa (stripe).

You can ignore the stripe because you know it has stripe...so you are left with 3 types of normals. Two out of three of these normals are het for stripe (Aa), One out of three is not het for stripe (AA). Therefore 2/3=66% possible het for stripe. (Because you can't visually see the difference of a snake with or without a het)
 
one more question when you are breeding say a motley with a lav. On your offspring how many do you usually hold back to breed, all of them or just one female one male.
 
henry2009 said:
one more question when you are breeding say a motley with a lav. On your offspring how many do you usually hold back to breed, all of them or just one female one male.
Click to expand...

I'm guessing you are wanting to breed the offspring to produce lav motleys?

I haven't bred, so I can't really answer your question properly, but I would say as many as you want/are comfortable with that will mature to breeding age and have a 1/16 chance at lav mot offspring. (that sounded confusing lol)

motley x lav = normal with 100% het motley and lav....so every one you hold back will be het for mot and lav. So you could keep as small as a single pair or trio... to as much as the whole clutch.

het mot lav x het mot lav
9/16 normal poss het (ph) mot lav, 3/16 lavender ph mot, 3/16 motley ph lav, 1/16 lavender motley
 
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It would depend on how much space you have to hold back. If you're really set on getting that lav motley, I would hold back 2.3. That way you have two males in case one is infertile or something, and three females to try and get that 1/16. But really, you could do it by holding back only 1.1 too.
 
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