Snake genetics

[SnakeDoctor]

So, im not sure if this only applpys to me or more people but I get really confused with snake morphs and genetics, could someone explain co-dom, het, recessive, dominant and things lots of other phrases, I kind of get it but was wondering if there is some sort of guide somewhere, I have seen BHB's snake genetics for dummys video but want to understand more than just that, people always use it in posts and stuff. help please and not just explenations for the words but more examples and stuff

[Pythonfriend]

just as a little starting point.... you dont need to start out with snake-specific or even ball python-specific stuff when learning genetics.

http://en.wikipedia.org/wiki/Mendelian_inheritance <-- totally relevant and applies to all species.

i think if you cover a bit of basics in genetics and combine it with the more ball python specific stuff on this forum, you will see the connections and come to an understanding. when people talk about specific genetics questions relevant to ball pythons, there often is an assumption that everyone already has some knowledge of genetics in general. and when you know how it works in general and in different species, you easily make the connection and understand it.

[RandyRemington]

Here is something specific to ball pythons I wrote a long time ago:

http://ballpython.ca/gallery/genetics-101/

It's a little outdated now (for example we now know candy/toffee is a mutant allele of albino). Also, pinstripe would have been a better example for completely dominant than spider. The Jury is still out on spider after 20 years but it may well be co-dominant with a lethal homozygous expression.

[OhhWatALoser]

Short as I think I can make it. Genes come in pairs. If the snake is normal we say it has 2 normal genes. Sometimes the gene mutates and it will make the snake look different. If the snake has one normal and one mutated gene we call it heterozygous (like pastel or het albino) and if it has 2 mutated genes we say it is homozygous (like super pastel or albino)

Depending on how the snake looks in heterozygous and homozygous compared to normal, we classify the genes differently.

	Heterozygous	Homozygous
Dominant	Visual Difference	Same Visual Difference
Co-Dom/Inc-Dom	Visual Difference	Different Visual Difference
Recessive	No Visual Difference	Visual Difference

[paulh]

http://www.redtailboas.com/f115/no-f...s-guide-53782/
That was written for the boa constrictor people, but the principles are the same for boas, ball pythons, mice, corn, fruit flies, etc.

http://iansvivarium.com/viewtopic.php?f=21&t=2079
One of the better sets of definitions on the web, IMO. The first post in the thread is difficult to understand because of broken English, but the seventh post in the thread is a revision with good English.