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Nady [450]
3 years ago
5

The duplication of homeotic (hox) genes has been significant in the evolution of animals because it _____.

Biology
1 answer:
USPshnik [31]3 years ago
5 0

Answer;

-Permitted the evolution of novel forms

Explanation;

-Hox proteins regulate other genes. Hox genes code for proteins that attach to molecular switches on DNA, turning other genes on and off. The DNA-binding piece of a Hox protein is called the homeodomain, and it's encoded by the homeobox.

-Hox genes are important as they help lay out the basic body forms of many animals, including humans, flies, and worms. They set up the head-to-tail organization.


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If you have a hamster with long fur, what possible genotypes could the hamster have?
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Answer:

Ll, Ll, LL

Explanation:

So, there is one thing we must remember to answer this:

1# dominant genes(long fur) are expressed over reccesive genes(short fur)

Knownign that dominant is over reccesive, it is simple. If the genotype was Ll or lL then the dominant long fur would be expressed over reccesive short fur. <u>Long fur - Ll, lL</u>

Next, we know that LL will be long fur since its both long and long, and there is no possibility for short fur. <u>Long fur - LL</u>

Finally. we have ll, and since there isnt a dominant long fur, and only reccesvie short, then this cannot be long fur. Short fur. - ll

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