PLANT PHYSIOLOGY
PLANT GROWTH
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Students planted several radish plants (Raphanus sativus) in their school garden. Students were allowed to take some of the plants home. One student observed that the plants grown at home were taller and had more leaves. She proposed the idea that genetic differences were responsible for the differences between the plants grown at school and the plants grown at home. Which of the following is the best argument against this idea?
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Genetic factors cannot influence plant height or leaf growth.
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Environmental factors are usually stronger than genetic factors.
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The genetic materials of all the plants would be the same.
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Changing environments can alter a plant’s genetic material.
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Explanation:
Detailed explanation-1: -Which of the following would provide the best evidence that genetic factors influence the growth of plants? Seeds from several different plants are planted under identical conditions and found to grow at different rates.
Detailed explanation-2: -[Clarification Statement: Examples of local environmental conditions could include availability of food, light, space, and water. Examples of genetic factors could include large breed cattle and species of grass affecting growth of organisms.
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