Question

A student uses a marble simulation to illustrate genetic drift. She starts with a
population of 50 individuals, represented by 25 red marbles and 25 blue marbles.
The red marbles represent an allele for pointed ears ih mice, and blue marbles
represent an allele for rounded ears. Which statement below is true?
The allelic frequency for rounded ears is 25.
The allelic frequency for pointed ears is 75 (75%).
The allelic frequency for rounded ears is 1.0.
The allelic frequency for pointed ears is 0.5 (50%).

Answer 1

Answer:

The allelic frequency for pointed ears is 0.5 (50%).

Explanation:

The frequency of alleles in a population must add up to 1 (100%).

Answer 2

The allelic frequency for pointed ears is 0.5 (50%).

What is allelic frequency ?

The allele frequency represents the incidence of a gene variant in a population. Alleles are variant forms of a gene that are located at the same position, or genetic locus, on a chromosome.

What is the difference between gene frequency and allele frequency?

Gene frequency, which more or less refers to the allele frequency, is the measurement where the number of repeats of the same allele is measured over a certain period of time.

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