Practice Problem:
The petal color of a rose is predominantly determined by a single gene with two versions: the red allele (R) and the white allele (W). A rose with a homozygous genotype for the red allele (RR) will exhibit the red phenotype. A rose with a homozygous genotype for the white allele (WW) will exhibit the white phenotype. A rose with a heterozygous genotype (RW), however, will display a pink petal phenotype.
Suppose you were to cross two heterozygous, pink flowers, and count the number of each phenotype in the subsequent generation. Your results end up being as follows:
116 roses with red petals
246 roses with pink petals
126 roses with white petals
Considering this data, answer th...