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question about co-doms and doms

ryanbrown73003 Jul 20, 2008 11:42 AM

i am new to this but i was woundering for example if you had a pastel how could it be het for somthing if it is co-dom? i have seen people saying they have a pastel het for say pied how is this ture as i have seen people say this about other co-doms can someone help me understand please ty ryan

Replies (4)

RandyRemington Jul 20, 2008 11:50 AM

There are very many different gene locations.

Pastel is at one location. Piebald is at another.

Heterozygous means having an unmatched pair of whatever genes you are talking about, it does not mean normal looking gene carrier, it just happens to work out that way with recessive mutation types.

A pastel is heterozygous for the pastel mutation because it has one pastel mutant copy of the gene at the pastel location and one normal for pastel copy of the same gene. At the completely separate piebald locus it also has two copies (one from each parent) of that completely separate gene. If one of those copies has the piebald mutation and the other is the normal for piebald version then the snake is also heterozygous for piebald.

PHLdyPayne Jul 20, 2008 12:33 PM

A strand of DNA has many billions of pairs of genes, each pair affect different areas of an animals body. The pastel gene is just one of these many pairs.
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PHLdyPayne

Coldthumb Jul 20, 2008 05:01 PM

>>i am new to this but i was woundering for example if you had a pastel how could it be het for somthing if it is co-dom? i have seen people saying they have a pastel het for say pied how is this ture as i have seen people say this about other co-doms can someone help me understand please ty ryan

Just wait until we get to quadruple hets!

If an animal is carrying one allele of piebald,then it is a het.

If an animal is carrying one allele of pastel,then it is a het(for super pastel,which has both alleles.)

The reason why het for pied,albino,clown etc are normal looking is due to the gene being recessive in nature.

Recess:
a secluded, withdrawn, or inner place subterranean recesses, the recesses of the subconscious
www.yourdictionary.com/recess

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Charles Glaspie
http://s25.photobucket.com/albums/c95/Coldthumb
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ROC Jul 20, 2008 08:52 PM

To put it another way, a pastel and pied breeding will result in all het pied animals. However, the pastel, the co-dom gene, will influence some of those animals, giving you some pastel and some normals. Just like if you bred a normal to a pastel, some normals and some pastels (statistically). The pied gene, as mentioned, deals with another allele. The normals are het for pied, and the pastels are het for pieds. Same thing with spiders and others.

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