A) 1 - Leaf primordium, 2 - Shoot apical meristem, 3 - Axillary bud
B) 1 - Leaf primordium, 2 - Shoot apical meristem, 3 - Apical bud
C) 1 - Root hair primordium, 2 - Root apical meristem, 3 - Axillary bud
D) 1 - Root hair primordium, 2 - Root apical meristem, 3 - Terminal bud
Correct Answer: A
Solution :
[a] In the given figure of shoot apical meristem, the parts marked as 1, 2 and 3 are respectively leaf primordium; shoot apical meristem and axillary bud (present in the axils of leaf and are capable of forming a branch or a flower). The shoot apical meristem is a population of cells located at the tip of the shoot axis. It produces lateral organs, stems, tissues and regenerates itself.
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