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Isotopes popularly know to have been u...

Isotopes popularly know to have been used in the study of photosynthesis are
or
Which of the following isotope of carbon was by Calvin to trace the path of carbon in photosynthesis

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The correct Answer is:
A
`C^(14)` isotope used for knowing carbon path and `O^(18)` used for verified that source of `O_(2)` in photosynthesis is `H_(2)O,` not `CO_(2)`.
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ERRORLESS -PHOTOSYNTHESIS IN HIGHER PLANTS-Photosynthesis In Higher Plants
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  11. The first experiment on photosynthesis in flashing light were c...

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