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Question

A grass which has both C3 and C4 ecotypes is

A
Alloteropsis semi alala
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B
Imperata cylindrica
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C
Cynodon dactylon
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D
Agropyron repens
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Solution

The correct option is B Alloteropsis semi alala
Alloteropsis semialata is also called as black seed grass. It is intermediate of C3 and C4 plants. It has both ecotypes. It has less biochemical characteristics of C4 plants. It shows transition and evolution of C3 to C4 plants.
Thus, the correct answer is option A.

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