Starting from the wild mustard Brassica oleracea , breeders have created the str
ID: 30980 • Letter: S
Question
Starting from the wild mustard Brassica oleracea, breeders have created the strains known as Brussel sprouts, broccoli, kale, and cabbage. Which of the following statements is supported by this observation?
Question options:
The vast difference in appearance of strains compared to each other and to the wild strain indicates that heritable variation is low.
There is enough heritable variation in Brassica oleracea to create a variety of features in derived strains.
Natural selection has not occurred very frequently in the wild Brassica oleracea populations.
Most of the variation present in this species is due to differences in soil, nutrition, amount of sunlight, or other aspects of the environment.
a)The vast difference in appearance of strains compared to each other and to the wild strain indicates that heritable variation is low.
b)There is enough heritable variation in Brassica oleracea to create a variety of features in derived strains.
c)Natural selection has not occurred very frequently in the wild Brassica oleracea populations.
d)Most of the variation present in this species is due to differences in soil, nutrition, amount of sunlight, or other aspects of the environment.
Explanation / Answer
d)
Most of the variation present in this species is due to differences in soil, nutrition, amount of sunlight, or other aspects of the environment.
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