Question

in a certain species of flowering plant, flowers may be blue (b¹b¹), purple (b¹b²), or red (b²b²). if a blue - flowering plant is crossed with a red - flowering plant, what percentage of their offspring will be red - flowering plants? 25% 100% 50% 0% 75%

Explanation:

Step1: Determine the gametes of the parents

The blue - flowering plant has the genotype \(B^{1}B^{1}\), so it can only produce \(B^{1}\) gametes. The red - flowering plant has the genotype \(B^{2}B^{2}\), so it can only produce \(B^{2}\) gametes.

Step2: Use Punnett square for cross

When we cross \(B^{1}B^{1}\) (blue) with \(B^{2}B^{2}\) (red), the Punnett square is:

	\(B^{2}\)	\(B^{2}\)
\(B^{1}\)	\(B^{1}B^{2}\)	\(B^{1}B^{2}\)

All of the offspring have the genotype \(B^{1}B^{2}\), which corresponds to purple - flowering plants.

Answer:

0%