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Please HELP! Urgent!The allele for small size is recessive, and the allele for normal size is dominant. The frequency for the normal-size allele is 0.72. What percentage of the rats are normal sized?

Sagot :

mickymike92

Based on the frequency for the normal-size allele,  the percentage of normal sized rats is 92.16%.

What are alleles?

Alleles are alternate copies of a particular which produce varied phenotypes.

The allele frequency is the frequency at which a particular allele occurs in a population.

Alleles are either dominant, recessive, or co-dominant.

In the given scenario, the allele for normal size in rats is dominant.

Assuming that the allele for size in rats is given as R and r.

According to the Hardy-Weinberg equilibrium equation;

  • R + r = 1
  • r² + 2Rr + R² = 1

If R = 0.72, r = 0.28

The percentage of normal sized rats is given as;

  • 2Rr + R²

The percentage of normal sized rats  = 2 * 0.72 * 0.28 + 0.72²

The percentage of normal sized rats = 0.9216

Therefore, the percentage of normal sized rats is 92.16%

In conclusion, the allele frequency helps us to calculate the percentage of the rats are normal sized.

Learn  more about allele frequency at: https://brainly.com/question/14649601

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