In a Certain Species of Plant, Flowers Occur in Three

question 85

Multiple Choice

In a certain species of plant, flowers occur in three colors: blue, pink, and white. A pure-breeding pink plant is mated with a pure-breeding white plant. All of the F₁ are blue. When the blue F₁ plants are selfed, the F₂ plants occur in the ratio 9 blue : 3 pink : 4 white. The genotype that produces white is ww. The presence of one W allele allows pink or blue color to occur. The alleles at the hypostatic locus are B (blue) and b (pink) .
- What is the genotype of the white parent?

• A) bb WW
• B) bb Ww
• C) Bb Ww
• D) Bb ww
• E) BB ww

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