Posted by:
Paul Hollander
at Thu Aug 10 10:46:48 2006 [ Email Message ] [ Show All Posts by Paul Hollander ]
>To keep it very very simple, a heterozygous animal has alleles for both dominant and recessive traits.
Unfortunately, this definition is pretty complex. To understand it, you need to know the definition of allele, dominant, and recessive.
Here's a much simpler and more accurate definition:
Genes come in pairs. If the two genes in the pair are the same, then the gene pair is homozygous. For example, AA is homozygous because the two letters in the pair are the same. The gene pair aa is also homozygous.
If the two genes in the pair are not the same, then the gene pair is heterozygous (slang = het). The gene pair Aa is heterozygous because the two genes are not the same.
Paul Hollander
[ Show Entire Thread ]
|
