Biology

To determine the frequency of the recessive allele (r), we first need to figure out how many r alleles are present in the population.

 

Here are the genotypes:

1.RR: 30 red flowers, each having 0 recessive alleles (r).

2.Rr: 15 pink flowers, each having 1 recessive allele (r).

3.rr: 5 white flowers, each having 2 recessive alleles (r).

 

Now, let’s calculate the total number of r alleles:

From Rr flowers: 15 individuals × 1 recessive allele = 15 r alleles

From rr flowers: 5 individuals × 2 recessive alleles = 10 r alleles

 

Total number of r alleles = 15 + 10 = 25 r alleles.

Since there are 50 flowers, and each flower has 2 alleles (total = 50 × 2 = 100 alleles), the frequency of the recessive allele (r) is:

Frequency of allele r =

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