Would we have the Same countries If Pangea existed? And would we look the same?explain please

1 answer:

8 0

I don’t think we would have the same countries. i feel like everything would be connected, like maybe a few really big countries instead of hundreds of different countries. i feel we would look different that how we already look because there would be more of different type of people around each other, resulting in mixed race reproducing.

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A population of pea plants has 25% dwarf plants and 75% tall plants. the tall allele, t, is dominant to dwarf (t). what percenta

galina1969 [7]

Here we would be using Hardy Weinberg equation for the calculation of allele and genotypic frequencies.

Dwarf genotype frequency = $q^{2}$ = 25% = 0.25

Frequency of allele t = q = $\sqrt{q^{2}}$ = $\sqrt{0.25}$ = 0.5

According to the equation,

p + q = 1

p = 1 - 0.5 = 0.5

Now, the frequency of heterozygous tall plants would be-

2pq = 2 * 0.5 * 0.5 = 0.5 or <u>50% heterozygous tall plants</u>.

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Why is the cell theory only a theory and not a law?

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Explanation:

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Which of the following statements about autosomal recessive traits is true?

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Answer:

A. If neither parent expresses the trait, but the offspring does, both parents must be heterozygous for the trait.

Explanation:

If neither parents express the trait is because they are heterozygous and the dominant allele is being expressed over the recessive trait. When parents cross they have 25% of having an offspring that expresses the recessive trait, this means the offspring is a recessive homozygous. In the attached example 25% or 1/4 will have a short stem.

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