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How many plants among China rose, Ocimum, sunflower, mustard, Alstonia

How many plants among China rose, Ocimum, sunflower, mustard, Alstonia, guava, Calotropis and Nerium (Oleander) have opposite phyllotaxy?

Options

(a) Two
(b) Three
(c) Four
(d) Five

Correct Answer:

Three

Explanation:

Phyllotaxy is the pattern of arrangement of leaves on the stem or branch.
Ocimum, Guava, Calotropis → Opposite phyllotaxy
China rose, Sunflower, Mustard → Alternate phyllotaxy
Alstonia, Nerium (Oleander) → Whorled phyllotaxy

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