Question

If a mutation introduces a new skin color in a lizard population, which factor might determine whether the frequency of the new allele will increase?

A)how many other alleles are present
B)whether the mutation makes some lizards more fit for their environment than other lizards
C)how many phenotypes the population has
D)whether the mutation was caused by nature or by human intervention

Answer 1

1. on end of figure 17-1 shows an increase in average beak size for a population of birds.

Directional stabilization

2. Figure 17-2 shows highest fitness toward the center of the curve.

Stabilizing selection.

3. Figure 17-3 shows smaller and larger beaks in a population of finches.

disruptive selection

4. If a mutation frequency introduces a new skin color in a lizard population, what factors might determine whether the frequency of the new allele will increase

whether the mutation makes some lizards more fit for their environment that other lizards.

5. genetic drift, the alleles frequencies in a gene pool change because of

Chance.

Step-by-step explanation:

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Answer 2

The answer is B) whether the mutation makes some lizards more fit for their environment than other lizards.

If a mutation introduces a new skin color in a lizard population and that mutation makes some lizards more fit for their environment than other lizards then the frequency of the new allele will increase. For example, if a mutation causes some dark skin color which can help some lizards to survive. The more lizards with dark skin color will survive, and after some time, the frequency of the new allele will increase.