I teach Biology in high school and keep a normal and lesser ball in my room. I am trying to figure out the genetics of this so that I can explain it to my students.

What I understand (or think I do:-)
- breeding lessers or mojaves to a normal gives you about a 1:1 ratio of normal/ morph in offspring.
- breeding 2 lessers 2 mojavesor lesserX mojave gives the traditional 1normal:2lesser or mojave:1BEL phenotypic ratio in offspring

Where I think I get lost:

I think what the ball python world calls codom is what we in science would look at as incomplete dom. example using red and white flowers with incomplete dom redX white= pink (lesser?) with codom RedX White = red and white spotted flowers. Most commonly thought of codom example in humans is blood type. with Type AB being the example of Codom


Also if you take a BEL (made from a Mojave X Lesser breeding) and breed it back to a normal do you get all lesser and Mojave? in 1:1 ratio?

Is the lesser and Mojave a example of multiple alleles like blood type?? where there are 3 or more alleles possible for the 2 alleles of the gene.

Help my brain hurts and the science geek in me wants to know how it works!

thanks for any info