Study the given figures and identify the kind of phyllotaxy.
(i) (ii) (iii)
(1) Whorled Opposite Alternate
(2) Alternate Opposite Whorled
(3) Opposite Alternate Whorled
(4) Opposite Whorled Alternate
(2)
— Concept: This question tests your understanding of phyllotaxy , which is the pattern of arrangement of leaves on the…Concept: This question tests your understanding of phyllotaxy, which is the pattern of arrangement of leaves on the stem or branch.
Why (B) is correct:
Figure (i) shows alternate phyllotaxy, where a single leaf arises at each node in an alternate manner (e.g., China rose, mustard, sunflower).
Figure (ii) shows opposite phyllotaxy, where a pair of leaves arises at each node and lie opposite to each other (e.g., Calotropis, guava).
Figure (iii) shows whorled phyllotaxy, where more than two leaves arise at a node and form a whorl (e.g., Alstonia, Nerium).
Why other options are wrong:
(A) Incorrect identification of all three types.
(C) Incorrect identification of all three types.
(D) Incorrect identification of all three types.
NEET Tip: Remember common examples for each type of phyllotaxy as they are frequently asked in exams. For alternate, think 'CAM' (China rose, Alternate, Mustard). For opposite, think 'GO' (Guava, Opposite). For whorled, think 'AW' (Alstonia, Whorled).
Correct Answer: (B)
(2)