Question

the gene for snapdragon flower color has two different alleles. the r allele codes for red flowers, and the w allele codes for white flowers. this characteristic exhibits incomplete dominance, so a mixture of both alleles (rw genotype) results in a plant with pink flowers. what is the frequency of the rr genotype in the population shown in the diagram? a. 4 b. 4.8 c. 4/12 d. 4%

Explanation:

Step1: Count the total number of plants

There are 12 plants in total.

Step2: Count the number of RR plants

There are 4 RR (red - flowered) plants.

Step3: Calculate the frequency of RR genotype

The frequency of a genotype is the number of individuals with that genotype divided by the total number of individuals. So the frequency of RR is $\frac{4}{12}$.

Answer:

C. 4/12