The frequency of the golden phenotype is 37/50.
The frequency of the golden phenotype can be calculated by adding the number of hamsters with the GG genotype and half the number of hamsters with the Gg genotype, since the Gg genotype also expresses the golden phenotype.
In this case, there are 12 hamsters with the GG genotype and 25 hamsters with the Gg genotype.
Therefore, the frequency of the golden phenotype is (12 + 25/2) / (12 + 25 + 13) = 37/50, which is option C.
The probable question may be:
Hamsters can have a variety of colors, including golden and black. The allele for golden color (G) is dominant over the allele for black color (g). The table shows the genotypes and phenotypes for a small population of hamsters.
Genotype Pheneotypr Number of Hamsters
GG Golden 12
Gg Golden 25
gg Black 13
What is the frequency of the golden phenotype?
A. 12/37
B. 13/50
OC. 37/50
D. 13/38