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12 Mar 2024, 16:27
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Difficulty:
75%
(hard)
Question Stats:
60% (02:29) correct
40%
(02:51)
wrong
based on 351
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In an attempt to genetically engineer a coffee plant that would produce beans containing no caffeine, Scientists prevented the production of an enzyme necessary for the synthesis of caffeine. Beans harvested from plants in which production of the enzyme was shut down throughout the plant contained no caffeine. However, there were normal amounts of caffeine in beans harvested from plants in which production of the enzyme was shut down in beans but not in the rest of the plant.
If the information presented above is accurate, which of the following hypothesis is most strongly supported on the basis of it?
(A) Measurable amounts of caffeine are present in the leaves of a coffee plants in which production of the enzyme has been completely stopped.
(B) Caffeine production in coffee plants does not require the action of more than one enzyme.
(C) Coffee made from the beans of the plants in which enzyme production was shut down only in the beans contains both caffeine and small quantities of the enzyme.
(D) In coffee plants, either caffeine or the enzyme necessary for the production of caffeine move into the beans from elsewhere in the plant.
(E) When the production of the enzyme is shut down in the beans but not in the rest of the coffee plant, the quantities of the enzyme produced in the rest of the plant are smaller than usual.
If the information presented above is accurate, which of the following hypothesis is most strongly supported on the basis of it?
(A) Measurable amounts of caffeine are present in the leaves of a coffee plants in which production of the enzyme has been completely stopped.
(B) Caffeine production in coffee plants does not require the action of more than one enzyme.
(C) Coffee made from the beans of the plants in which enzyme production was shut down only in the beans contains both caffeine and small quantities of the enzyme.
(D) In coffee plants, either caffeine or the enzyme necessary for the production of caffeine move into the beans from elsewhere in the plant.
(E) When the production of the enzyme is shut down in the beans but not in the rest of the coffee plant, the quantities of the enzyme produced in the rest of the plant are smaller than usual.
14 Mar 2024, 07:06
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rohitsree
C says that in beans where production of the enzyme was shut down in the beans, the enzyme and caffeine are present in the beans. Why would the enzyme be present in the beans?
15 Mar 2024, 04:02
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please explain this question briefly
