The table below provides information about a population in which natural selection acts on a single-genetic trait.

Question

Frequency of Alleles
Year
Frequency of Allele B
Frequency of Allele b
1910
0.81
0.19
1930
0.49
0.51
1950
0.25
0.75
1970
0.10
0.90
What can be inferred from the information in the table?
Diversity in the gene pool increased over time.
Allele B was dominant in 1910 but became the recessive allele over time.
The frequency of both alleles in this population decreased from 1910 to 1970.
From 1910 to 1970 the likelihood of surviving was higher for individuals with Allele b.

Answer 1

Allele B was dominant in 1910 but became less common over time, with the frequency of allele b increasing. This suggests that natural selection favored individuals with allele b, leading to a decrease in the frequency of allele B over time. Therefore, option B is the correct inference.

Answer 2

The table below provides information about a population in which natural selection acts on a single-genetic trait.
Frequency of Alleles
Year
Frequency of Allele B
Frequency of Allele b
1910
0.81
0.19
1930
0.49
0.51
1950
0.25
0.75
1970
0.10
0.90
What can be inferred from the information in the table?
A. Diversity in the gene pool increased over time.
B. Allele B was dominant in 1910 but became the recessive allele over time.
C. The frequency of both alleles in this population decreased from 1910 to 1970.
D. From 1910 to 1970 the likelihood of surviving was higher for individuals with Allele b.

Answer 3

Allele b became more common in the population over time, suggesting that natural selection favored individuals with allele b. Therefore, option D is the correct inference.

Answer 4

is the answer b or d

Answer 5

The answer is D.