Question

try this!
in mice, black eye color (b) is dominant to blue eye color (b). use the diagram to answer these questions:

• in the gene pool, how many alleles are...

black? 20
blue? 30
total? 50

• what is the allele frequency for...

b?
b?

• what is the phenotypic frequency for...

black?
blue?
*note: black circles represent \b\ allele; gray circles represent \b\ allele
open-ended question
what percentage of the population has the b allele?

Explanation:

Step1: Calculate allele frequency formula

Allele frequency = (Number of a specific allele)/(Total number of alleles)

Step2: Substitute values

Number of B alleles = 20, total alleles = 50. So frequency of B is \( \frac{20}{50}=0.4 \)

Step3: Convert to percentage

Multiply by 100: \(0.4\times100 = 40\%\)

Answer:

40%