Multiple choice The genotype ratio in F2 generation of monohybrid cross will be 1 : 2 1 : 2 : 1 3 : 1 1 : 1 Reveal answer Fill a bubble to check yourself B Correct answer Explanation Random union of equal numbers of R and r gametes produced an F2 generation with 25% RR and 50% Rr and 25% rr.