Super forms

[paulh]

Is that how it is with all co dominant morphs? XN? So in the super form, why does the phenotype change? Is it that it magnifies the morphs original characteristics?

Not all codominant morphs are caused by a mutant gene paired with a normal gene. It could be caused by a mutant gene paired with a different mutant gene (XY). But the most common type is a mutant gene paired with a normal gene(XN).

A normal gene is the most common gene at a given location in the chromosomes. A mutant gene is NOT the most common gene at a given location in the chromosomes. A snake looks normal if it looks like most of the same species of snake crawling around in the wild.

A mutant gene and its corresponding normal gene can make three gene pairs:
1. 2 copies of the normal gene
2. 1 normal gene and 1 mutant gene.
3. 2 copies of the mutant gene

Each mutant gene is recessive, dominant, or codominant to the corresponding mutant gene. When a normal and two (or more) mutant genes have the same location in the chromosomes, a mutant gene is always recessive, dominant, or codominant to another mutant gene.

The mutant gene is recessive to the normal gene if
1. 2 copies of the normal gene make the snake look normal. (Appearance is normal.)
2. 1 normal gene and 1 mutant gene makes the snake look normal. The effect of the normal gene prevents the effect of the mutant gene from being detectable. (Appearance is normal.)
3. 2 copies of the mutant gene produces the full effect of the mutant gene. (Appearance is albino.)
Example: Albino mutant gene and corresponding normal gene in ball pythons in the above.

The mutant gene is dominant to the normal gene if
1. 2 copies of the normal gene make the snake look normal. (Appearance is normal.)
2. 1 normal gene and 1 mutant gene makes the snake look like a snake with two copies of the mutant gene. The effect of the mutant gene prevents the effect of the normal gene from being detectable. (Appearance is pinstripe.)
3. 2 copies of the mutant gene produces the full effect of the mutant gene. (Appearance is pinstripe.)
Example: Pinstripe mutant gene and corresponding normal gene in ball pythons.

The mutant gene is codominant to the normal gene if
1. 2 copies of the normal gene make the snake look normal. (Appearance is normal.)
2. 1 normal gene and 1 mutant gene makes the snake look neither normal nor like a snake with 2 copies of the mutant gene. Both the normal gene and the mutant gene have an effect on the snake's appearance. (Appearance is lesser platinum.)
3. 2 copies of the mutant gene produces the full effect of the mutant gene. (Appearance is blue-eyed white.)
Example: Lesser platinum mutant gene and corresponding normal gene in ball pythons.

Platinum in the ball python is a example of a mutant gene that is codominant to another mutant gene. Both mutant genes must have the same location in the chromosomes. The lesser platinum mutant gene is codominant to the Daddy gene
1. 2 copies of the lesser platinum mutant gene produces the full effect of the lesser platinum mutant gene. The snake is blue-eyed white
2. 1 lesser platinum mutant gene and 1 Daddy mutant gene makes the snake look neither blue-eyed white nor like a snake with 2 copies of the Daddy mutant gene. Both mutant genes have an effect on the snake's appearance. The snake is platinum, which is lighter than a snake with a lesser platinum gene paired with a normal gene.
3. 2 copies of the Daddy mutant gene produces the full effect of the Daddy mutant gene.

Clear as mud?