3. Extensions to Mendelian Inheritance
Epistasis and Complementation
3PRACTICE PROBLEM
Two pure-breeding strains of a plant, designated P1 and P2, produce flowers of the same color, which is purple. Each of these strains, when crossed with a pure-breeding strain X, produces F1 progeny plants that have pink flowers. When pure-breeding P1 and P2 are crossed, the F1 progeny plants have pink flowers and self-fertilization of the F1 progeny resulted in 9/16 plants with pink flowers and 7/16 plants with purple flowers. Determine the genotype of the parents of F1 progeny.
Two pure-breeding strains of a plant, designated P1 and P2, produce flowers of the same color, which is purple. Each of these strains, when crossed with a pure-breeding strain X, produces F1 progeny plants that have pink flowers. When pure-breeding P1 and P2 are crossed, the F1 progeny plants have pink flowers and self-fertilization of the F1 progeny resulted in 9/16 plants with pink flowers and 7/16 plants with purple flowers. Determine the genotype of the parents of F1 progeny.