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Question

The dark reaction of photosynthesis was discovered by

A
Hatch and Slack
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B
Melvin Calvin
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C
Otto Warburg
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D
Robert Emerson
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Solution

The correct option is B Melvin Calvin
Dark reaction or biosynthetic phase of photosynthesis uses products of light reaction – ATP and NADPH to synthesise glucose. This reaction was first worked out by Melvin Calvin and named C3 pathway or Calvin cycle.
But later on another pathway of carbon fixation or dark reaction, called C4 pathway was discovered by Hatch and Slack.

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