Question

An African violet grower observes that genetically identical African violet plants growing near the walls of the greenhouse have white flowers, that plants growing farther away from the walls have pale blue flowers, and that plants growing nearest the center of the greenhouse have dark blue flowers.
Which of the following best explains the differences in flower color of the African violets in the greenhouse?
A
Warmer temperatures result in genotypic alterations, which result in flower color differences.
B
The plants along the walls of the greenhouse are homozygous recessive and therefore have white flowers.
C
An enzyme responsible for flower color does not fold correctly in cooler temperatures, and the greenhouse is warmest in the center.
D
More light is available along the walls of the greenhouse, so the flowers need less pigment to absorb sunlight for photosynthesis.

Answer 1

Answer:

C. An enzyme responsible for flower color does not fold correctly in cooler temperatures, and the greenhouse is warmest in the center.

Explanation:

Just like the color of human skins, the color of violets is promoted by a protein, in the specific case of violets, an enzyme. Enzymes (like proteins, in general) need to act at a specific temperature. Outside of this temperature, the enzyme cannot reach its correct shape, which ends up modifying its function in an organism.

In relation to the question above, as the plants were in a greenhouse, which changes the natural temperature of the environment, we can say that the change in the colors of the violets occurred because an enzyme responsible for the color of the flower does not bend correctly at lower temperatures and the greenhouse is warmer in the center.

Answer 2

Answer: A!

Explanation: I did it on my test and got it right