what does het mean or 100% het?
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quick q&a....
eltrut0
Mar 31, 2007 07:05 PM
Replies (4)
rosycorn
Mar 31, 2007 08:49 PM
They mean the same thing, heterozygous. It's a genetics term that basically means the animal has two different copies of the same gene.
For example, call albino allele (copy of a gene) A and not-albino allele B. An albino animal (homozygous) has two A alleles, AA. An animal that is heterozygous for albino has one of each, AB, and looks normal (there are cases where het animals don't look normal, but lets not complicate the issue...). Hope that helps,
-P
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1.0.0 Normal corn snake (Frito)
1.0.0 Creamsicle corn (Tang)
0.1.0 Ghost corn (Raynham)
1.0.0 Bay of LA rosy boa (Rivet)
0.1.0 Cape Gopher (Mole)
0.0.1 African House Snake (Really Lil' Dude)
duffy
Mar 31, 2007 09:15 PM
In other words...It may LOOK "normal", for example, but it carries a gene for some other trait which will not show up unless it has BOTH (homozygous). The percentages suggest the liklihood (probability) that it IS het. So 100% het means that it's het for sure. 50% means there's a 50-50 chance, and so on.
DMong
Mar 31, 2007 09:44 PM
Being the "genius" that I am!LOL......I know that if you understood all that genetics "lingo", you wouldn't have asked what "het" meant in the first place, so even MORE simply put, het(heterozygous) just means the animal is an absolute "known" recessive gene carrier for a specific trait, or combination of traits. Meaning that you can't visually see the trait(s) in the animal.
best regards,
Doug
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Better to be silent and thought a fool, than to open mouth and remove any doubt!
Paul Hollander
Apr 02, 2007 01:57 PM
Any time someone says a heterozygous animal looks normal, he is writing about a recessive mutant gene.
Heterozygous simply means that a gene pair contains one copy of each of two different versions of the gene. Homozygous means that there are two copies of one version of the gene in the gene pair.
What a heterozygous animal looks like has nothing to do with it being heterozygous. The appearance of the heterozygous animal determines whether a mutant gene is classed as dominant, codominant, or recessive to the normal version of the gene. But that's another question.
Paul Hollander
