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neonofarm [45]
3 years ago
11

A farmer in western Minnesota is retiring. He wants to stop farming his 3,000 acres and turn the land into a prairie. He begins

to plant grasses that are native to a short-grass prairie. Is this a good or bad idea?
Question 9 options:

A)

It is a good idea because we need more short-grass prairie in Minnesota



B)

It is a good idea because prairie land is good for animal habitats and migrations


C)

It is a bad idea because he won't be able to afford the restoration


D)

It is a bad idea because Minnesota has never had a naturally occurring short-grass prairie; only tall-grass prairies exist here.
Biology
1 answer:
Snowcat [4.5K]3 years ago
8 0
B    b is the right answer

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Suppose a population of flour beetles has 10,000 individuals. There are two alleles possible for the gene that determines body c
miss Akunina [59]

Answer:

0.75

Explanation:

Given frequency of the two alleles i.e "B" and "b" are equal .

As per Hardy–Weinberg equilibrium, sum of frequency of the two alleles is equal to one.

i.e p+ q= 1\\

Since p=q\\

p and q will be equal to 0.5

Frequency of genotype "BB"

= p^{2} \\= 0.5^{2} \\= 0.25

Frequency of genotype "bb"

= q^{2} \\= 0.5^{2} \\= 0.25

As per second equation of Hardy–Weinberg equilibrium,

p^{2} + q^{2} + 2pq=1

Substituting the values of p and q in above equation we get -

0.25+0.25+2pq=1\\2pq = 1-0.25-0.25\\2pq = 0.5

Red beetles have genotype BB and Bb

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Frequency of red beetles

= \frac{7500}{10000} \\= 0.75

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3 years ago
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