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  • The length of different internodes in a culm of sugarcane is variable because of  Option: 1 shoot apical meristem<div cl

The length of different internodes in a culm of sugarcane is variable because of

 

Option: 1

shoot apical meristem


Option: 2

position of axillary buds


Option: 3

size of leaf lamina at the node below each internode


Option: 4

intercalary meristem


Answers (1)

best_answer

Intercalary meristem is present away from apical meristem in primary permanent tissue. It is present at the base of internodes, e.g. in family-Gramineae or at the base of leaves, e.g. Pinus or at the base of node, e.g. Mentha. Intercalary meristem is responsible for increase in length. The shoot apical meristem present at the apices of shoot, is self determining and autonomous organising centre. The primary growth and differentiation of primary tissues is entirely due to this meristem as it continuously divides giving rise to new cells. These are the apical meristems that increase the length of plant but not interodes variability. Hence, the correct answer is option 4. 

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Nehul

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