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Question

Rhizomes and runner stems are:

A
Diageotropic
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B
Apogeotropic
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C
Plageotropic
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D
Aerotropic
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Solution

The correct option is A Diageotropic
  • Diageotropism is shown by rhizomes and runners which grow at right angles to the force of gravity.
  • Plagiogeotropism is the property of secondary lateral roots which grow obliquely downwards.
  • Apogeotropism is the lateral roots and branches of higher plants are not sensitive to the stimulus of gravity.
  • Aerotropism is the growth or movement in the direction of a supply of air or oxygen.
  • Thus, the correct answer is option A.

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