Answer:
My answer is the genotypes are BB, Bb, Bb, and bb.
Step-by-step explanation:
I attached a photo of the punnet square after crossing the genotypes Bb and Bb. Crossing the B on top with the B on the side results in the genotype BB. Crossing the b on top with the B on the side results in Bb. The genotype that results is written in the box that connects the row and the column (such as top row and left column results in BB).