On chromosome 3 of corn, there is a dominant geneA1 which together with dominant gene A2 on chromosome 9 produces aleurone. All other genetic combinations produced colourless aleurone. Two pure colourless strains are crossed to produce an all coloured F1. (a) what were the genotypes of the parental strain and F1?
(b) what phenotypic proportions are expected among the F2?
(c) What genotypic ratio exists among the white F2?​