If a pea plant has two allele (yy) for seed colour, it follows that the genotype of the pea plant is homogenous for seed colour.
Gene inherited may be in two forms namely;
Heterozygous is characterized by having inherited different forms of a particular gene from each parent. A heterogenous genotype stands contrary to a homogenous genotype, where an individual inherits identical forms of a particular gene from each parent.
Read more on homogenous and Heterogenous genotype;
https://brainly.com/question/3676361