In Mendel's pea plants,yellow seeds are dominant to green seeds.Purple flowers are dominant to white flowers.Use Y and y for the seed color alleles and P and p for the flower color alleles.Flower color and seed color assort independently.A plant of unknown genotype with yellow seeds and purple flowers is crossed to a plant with green seeds and white flowers.The offspring all have yellow seeds,but some have purple flowers,and some have white flowers.What is the genotype of the yellow-seeded,purple-flowered plant?

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The yellow-seeded, purple-flowered plant must be homozygous dominant for seed color (YY) to ensure all offspring have yellow seeds, and heterozygous for flower color (Pp) to produce both purple and white flowers in the offspring.

In Mendel's Pea Plants,yellow Seeds Are Dominant to Green Seeds