Two genes interact to produce various phenotypic ratios among f2 progeny of a dihybrid cross. design a different pathway explaining each of the f2 ratios below, using hypothetical genes r and r and assuming that the dominant allele at each locus catalyzes a different reaction or performs an action leading to pigment production. the recessive allele at each locus is null (loss of function). begin each pathway with a colorless precursor that produces a white or albino phenotype if it is unmodified. the ratios are for f2 progeny produced by crossing wild-type f1 organisms with the genotype rrtt. a. 9/16 dark blue : 6/16 light blue : 1/16 whiteb. 12/16 white : 3/16 green: 1/16 yellowc. 9/16 green: 3/16 yellow : 3/16 blue : 1/16 whited. 9/16 red : 7/16 whitee. 15/16 black : 1/ 16 whitef. 9/16 black: 3/16 gray : 4/16 albinog. 13/16 white: 3/16 green
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Two genes interact to produce various phenotypic ratios among f2 progeny of a dihybrid cross. design...
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