Complete the following cross between a round pea plant and a wrinkled pea plant: Rr x rr. R = dominant round allele, r = recessive wrinkled allele....

Complete the following cross between a round pea plant and a wrinkled pea plant: Rr x rr.

R = dominant round allele, r = recessive wrinkled allele. The plants with the round pea seeds are selfed. What proportion of the resulting F2 generation is expected to be wrinkled?