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C4/ Hatch and Slack Pathway

Stipules are ...

Question

Stipules are modified into spines in

A

Citrus and Euphorbia

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B

Euphorbia and Zizyphus

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C

Zizyphus and Bougainvillea

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D

Citrus and Bougainvillea

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Solution

The correct option is B
Euphorbia and Zizyphus

Spine is a modified leaf. Stipular spines are modified stipules present at the base of a leaf. They are sharp pointed. Stipules are modified into spines in Zizyphus, Euphorbia, Acacia nilotica.
Thus, the correct answer is 'Euphorbia and Zizyphus.'

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