If green is dominant over blue, then for this individual then the genotypic ratio will be 1:2:1. This can be expressed by monohybrid cross by punnett square,
A monohybrid cross refers to the hybrid of two individuals with pure breed genotypes that result in the opposite phenotype for a specific genetic traits.
Monohybrid cross is used by scientist to observe how pure breed offspring express heterozygous genotypes which is inherited from their parents.
For more details regarding monohybrid cross, refer:
https://brainly.in/question/50053302
#SPJ4