Question

The color of a petunia can be changed from red to blue by changing the pH of the soil. This is an example of (choose all that apply):

O a norm of reaction
O an example of the environment influencing the phenotype
O incomplete dominance
O co-dominance
O pleisiomorphy

Answer 1

The ability to change the color of petunias from red to blue by changing the pH of the soil is an example of the environment influencing the phenotype.

Step-by-step explanation:

The ability to change the color of petunias from red to blue by changing the pH of the soil is an example of a phenotype being influenced by the environment. The soil pH affects the availability of certain pigments in the plant, resulting in a change in flower color.

This is not an example of incomplete dominance, codominance, or any other genetic concept, but rather a simple environmental influence on phenotype.