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arsen [322]
3 years ago
15

A squirrel population lives in an area. Over many years, a river in that area grows wider and stronger, eventually forming a can

yon. The squirrel populations on the two sides of the canyon can no longer mate with each other and ultimately form distinct species. This is an example of
A. differential speciation.
B. sympatric speciation.
C. penultimate speciation.
D. allopatric speciation.
Biology
1 answer:
Natasha2012 [34]3 years ago
5 0

Answer:

The correct answer is D. allopatric speciation

Explanation:

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Answer:

1. B.

2. B.

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1. So, the mother does not but the father does carry the gene for polydactyly. Which means that, the offspring was born Pp and, the dominant trait (P) was exposed.

2. A heterozygous trait is one that has both allele forms (in this case, d and D. If both of the parents are Dd, the offspring will also be Dd, and therefore, he has 1/2 chance of being born deaf.

3. Both you and your spouse will be heterozygous (Ee), therefore, since unattached earlobes are dominant

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3.2 The third option is incorrect, because when you breed 2 homozygous recessive (ee) traits, all of your offspring will be homozygous recessive (ee), which means that the parents would have to be homozygous recessive, but, they cannot since the dominant trait has applied to them.

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