Question
A pea plant with genotype RrYy, when forming gametes, can produce gametes of which possible combinations?
Only RY
Only ry
RY, Ry, rY, and ry
RRYY only
Detailed Explanation
Due to independent assortment of the R/r and Y/y gene pairs, an RrYy plant can produce four types of gametes: RY, Ry, rY, and ry.