In a certain species of roses, a plant with genotype (generic makeup) AA has red flowers, a plant wtih genotype Aa has pink flowers, and a plant with genotype aa has white flowers, where A is the dominant gene and a is the recessive gene for color. If a plant with one genotype is crossed with another plant, then the color of the offspring’s flowers is determined by the genotype of the parent plants. If a plant of each genotype is crossed with a pink-flowered plant, then the transition matrix is used to determine the color of the offspring’s flowers is given by

Question

If the offspring of each generation are crossed only with pink-flowered plants, what percentage of the plants will have red

flowers in the long run?

a. 20%

b. 25%

c. 10%

d. 50%

e. 0.25%

Answer 1

b. 25%