Question

Hydrangea plants of the same genotype are planted in a large flower garden. Some of the plants produce blue flowers and others pink flowers. This can be best explained by which of the following?
a. the allele for blue hydrangea being completely dominant
b. the knowledge that multiple alleles are involved
c. environmental factors such as soil pH
d. the alleles being codominan

Answer 1

Answer:

c. environmental factors such as soil pH

Explanation:

Hydrangea plants do exhibit or take on different forms of colors in reaction to environmental factors most especially, the soil pH.The production of Hydrangea plants on the large flower garden, which produces blue flowers and pink flowers, can simply be explained to be as a result of the sensitivity to soil pH.  This results in the change of the color of the flower pigment.

Answer 2

Answer:

c. environmental factors such as soil pH

Explanation:

Hydrangea plants do exhibit or take on different forms of colors in reaction to environmental factors most especially, the soil pH.  

Generally, Hydrangea plants will produce blue flowers if the soil pH level is below 6, while it would produce pink flowers if the pH of the soil is alkaline in nature (pH value is above 7).

The production of Hydrangea plants on the large flower garden, which produces blue flowers and pink flowers, can simply be explained to be as a result of the sensitivity to soil pH.  This results in the change of the color of the flower pigment.