Spider genetics

I was just reading another het example onlin eand became confused. http://www.ballpython.ca/what_get/dominant.html what is a homozygous spider? If they look the same the only difference is if it can pass on that spider pattern more right? If the het is the spider and the homo is the homo breeding a het x het aka spiders gives you just one homo two hets aka spiders andone normal. This is basically like breeding an albino except the hets are visible and look just like the homos. Are the proven spider homos worth more than hets? And what would happen if you breed an albino to a spider?

if you breed albinoxspider, you would get spiders het for albino and normals het for albino.

i don't think there are any official (homo) or super spiders, more breeding has to be done to be 100% certain.

yes, like a super pastel, a homo spider should be worth more because it would be able to produce more spiders.

vaughn

This thread has Randy written all over it ... can ya smell it?

-adam

The basic point to keep straight is that most genes come in pairs, one from each parent. When offspring are produced, each parent pics one copy of each of their gene pairs to pass on as their contribution to the baby.

When a pair of genes are the same, they are called homozygous. When the pair is different, it's called heterozygous.

A theoretical snake that was homozygous for the spider mutation would have a matched set of spider mutant versions of the spider gene (one from each of its parents). It wouldn't mater which one of the pair a homozygous spider gave, all of its offspring would get the spider mutant version of the gene from that parent’s side.

A snake that is heterozygous for the spider mutation has one spider mutant version of the spider gene and one normal version of the same gene. Each of its offspring has a 50/50 chance of getting the spider mutant copy from that heterozygous spider parent.

Understanding the meaning of heterozygous and homozygous and the basic theory of gene pairs with one copy passed from each parent simplifies predicting offspring because the same set of rules applies regardless of if you are talking about recessive, co-dominant, or dominant mutation types.

Now that is good stuff! ... helpful, clear, a little dry but not too bad, and most importantly great information! ... I like it!

( darn spookey how I just knew it was coming though :P ... man I'm good )

-adam

...gave me goosebumps....