Calculate allele frequency: If there are 40 butterflies in a population and 27 of them are yellow, what is the yellow allele frequency?

The frequency of the yellow allele in the 40 butterflies is:

Explanation:

The allelic frequency or genetic frequency is the variant of a gene found in a population.

The sum of the variants of the recessive gene with the normal ones of the population of the dominant gene give 1 (Or 100% of the population)

If a group of 40 butterflies has a dominant gene that makes them yellow, then:

Yellow: Aa. That is the dominant color of butterflies.

Another color: aa. That would the recessive color be in the butterflies.

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