Mendel's dihybrid cross between two F1 pea plants with genotype YyRr (yellow and round seeds) would yield an F2 generation consisting of: one-quarter of the offspring with green and wrinkled seeds all heterozygous genotypes like the parents the majority of offspring with the yellow and round phenotype no offspring with green and wrinkled seeds
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Step 1: Determine the phenotypic ratio of the F2 generation based on the dihybrid cross between two F1 pea plants with genotype YyRr. Show more…
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In pea plants, seed shape and seed color are controlled by genes located on different chromosomes. Seeds may be round (R) or wrinkled (r), with the allele for round seeds being dominant. Alleles for seed color are yellow and green, with the green allele (y) recessive to the yellow (Y) allele. If you cross an individual that is homozygous round and yellow with an individual that is homozygous for wrinkled and green, what is the genotype of the F1 individuals? Set up a Punnett square for the dihybrid cross.
Suman K.
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