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Vaselesa [24]
3 years ago
11

Pls answer this and thank you

Mathematics
2 answers:
steposvetlana [31]3 years ago
7 0
The answer is b on the question
labwork [276]3 years ago
5 0

Answer:

b

Step-by-step explanation:

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A mole has two alleles for fur color, B = brown fur and b = white fur. In a population of 100 moles, 12 have white fur.  a) What
Oxana [17]
I'll assume \mathrm B is completely dominant over \mathrm b. Recall the Hardy-Weinberg equations:

\begin{cases}p^2+2pq+q^2=1\\p+q=1\end{cases}

where p represents the allele frequency for brown fur, or the number of copies of the allele \mathrm B within the population; and q represents the allele frequency for white fur, or the number of copies of \mathrm b. In the first equation, the squared terms refer to the frequencies of the corresponding homozygous individuals, while 2pq is the frequency of the heterozygotes.

We're told that 12 individual moles have white fur, so we know for sure that there are 12 homozygous recessive individuals, which means

q^2=\dfrac{12}{100}=\dfrac3{25}\implies q=\dfrac{\sqrt3}5\approx0.346


from which it follows that

p=1-\dfrac{\sqrt3}5\approx0.654

Over time, H-W equilibrium guarantees that the allele frequencies (p,q) do not change within the population. For example, suppose we denote the frequency of the \mathrm B allele in generation n by p_n. Then


p_n={p_{n-1}}^2+\dfrac{2p_{n-1}q_{n-1}}2

That is, the frequency \mathrm B in the n-th generation has to match the frequency of \mathrm B attributed to the \mathrm{BB} and half the \mathrm{Bb} individuals of the previous generation.

p_n={p_{n-1}}^2+p_{n-1}q_{n-1}=p_{n-1}(p_{n-1}+q_{n-1})=p_{n-1}

The same goes for q_n.
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What is 6 divided by 258?
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258 / 6 = 43

Hope this helps!
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