Question

if green is dominant over purple, then what is the genotype for this individual?

Explanation:

Step1: Recall dominant/recessive rules

For a recessive trait (purple) to be expressed, the genotype must be homozygous recessive, since dominant alleles (G for green) mask recessive ones.

Step2: Match phenotype to genotype

The individual shows purple (recessive), so it can only have two recessive alleles.

Answer:

gg