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Genetics

F

Felix the snake

Meow!
I think I understand basic genetics and know that if I bred a normal(homozygous) corn with lets say a (homozygous) snow, I would get a bunch of normal looking corns but heterozygous for snow because the dominant trait is the normal one.

What I'm not too sure about is that if a snake, i.e a snow was bread with an anerythristic snake what would the outcome be as I don't know how to work out which trait is dominant etc. I think it would be one, het the other. (assuming they were homo.) But I don't know which way round it would be and how to tell :shrugs:

I hope that made a bit of sense!!!

Thanks,

Andy
 
I believe that you would get all Amels het Anery. However, if either of the two parents are het for another trait, then those predictions are blown out of the water.

example: Amel het Anery cross Snow would give you half snow and half Amel het anery.
 
The mutation is normally the ressessive. If you cross an anery to a snow, you will have all anery because the two parents will give the gene anery that must me present twice to be an apearant trait, because it is ressessive. So, if the normal gene is here (normal = dominant), the ressessive cannot express a trait because, the word say it, it's dominant!
 
First you have to know that you can't be "het for snow" technically. Snow isn't a single trait. What people mean when they say "het for snow" is that the snake is heterozygous for both amel and anery A (the 2 components that make up snow).

If you breed a snow (homozygous anery and homozygous amel) to an anery (that isn't het for amel), then you'd get all anerys known het for amel.
 
Felix the snake said:
I think I understand basic genetics and know that if I bred a normal(homozygous) corn with lets say a (homozygous) snow, I would get a bunch of normal looking corns but heterozygous for snow because the dominant trait is the normal one.

What I'm not too sure about is that if a snake, i.e a snow was bread with an anerythristic snake what would the outcome be as I don't know how to work out which trait is dominant etc. I think it would be one, het the other. (assuming they were homo.) But I don't know which way round it would be and how to tell :shrugs:

I hope that made a bit of sense!!!

Thanks,

Andy
Click to expand...


Yes, a snow x normal would give you normal babies, het for anery and amel.

If you were to bred just a regular anery, no hets, to a snow you would get all anery babies, het for amel.

If that anery was het for amel, you'd get a 50/50 mix of snow's and anerys het for amel.

I think mainly genetics is confusing for people because it's sometimes difficult to set up a punnet square. If you know what one is and how to accurately encorporate the genes, it makes it very easy to compute the genetics.
 
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