You observe a flock of seagulls with 25 members. After performing a genetic analysis, you discover that 12 are homozygous dominant for brown eyes (BB), 8 are heterozygous for brown eyes (Bb), and 5 are homozygous recessive for blue eyes (bb). What is the gene frequency of the recessive allele?

Question

Biology

Anastasia Evans

16 September, 04:44

You observe a flock of seagulls with 25 members. After performing a genetic analysis, you discover that 12 are homozygous dominant for brown eyes (BB), 8 are heterozygous for brown eyes (Bb), and 5 are homozygous recessive for blue eyes (bb). What is the gene frequency of the recessive allele?

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Answers (1)

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Carson · Answer 1

Gene Frequency = 20% (bb) (Recessive)

Explanation:

Gene frequency in particular population can be found by dividing the known gene frequency by the total number of genes present and then percentage can be calculated by multiplying the whole expression by 100.

Gene Frequency (Recessive) = (Number Of Genes (Recessive) / Total Number Of Gene Variants In A Population) x 100

Gene Frequency (Recessive) = (5/25) x 100 = 20%