In a wildflower species, flowers occur in three colors: orange, red, and white. The color is determined by two genes that are independently assorting. The genotype that produces white must include T_. The presence of two t alleles allows orange or red flowers to occur. The alleles at the hypostatic locus are R (red) and r (orange). A pure-breeding orange plant is mated with a pure-breeding white plant to produce F, plants. When the F, plants self-pollinate to produce the F2 generation, the F2 plants Occur in the ratio 12 white: 3 red: 1 orange. Part a) What are the genotypes of the pure breeding orange plant and pure-breeding white plant? Part b) What is the genotype and phenotype of the F, plants? Part c) What is/are the genotype(s) of the red F2 plants? Part d) Is this an example of dominant or recessive epistasis? Explain.
In a wildflower species, flowers occur in three colors: orange, red, and white. The color is determined by two genes that are independently assorting. The genotype that produces white must include T_. The presence of two t alleles allows orange or red flowers to occur. The alleles at the hypostatic locus are R (red) and r (orange). A pure-breeding orange plant is mated with a pure-breeding white plant to produce F, plants. When the F, plants self-pollinate to produce the F2 generation, the F2 plants Occur in the ratio 12 white: 3 red: 1 orange. Part a) What are the genotypes of the pure breeding orange plant and pure-breeding white plant? Part b) What is the genotype and phenotype of the F, plants? Part c) What is/are the genotype(s) of the red F2 plants? Part d) Is this an example of dominant or recessive epistasis? Explain.
Chapter13: Patterns In Inherited Traits
Section: Chapter Questions
Problem 6GP: In sweet pea plant, an allele for purple flowers (P) is dominant when paired with a recessive allele...
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