Question

Biosynthesis of cytokinin takes place via

• A. Mevalonic acid cycle
• B. Citric acid cycle
• C. Calvin cycle
• D. $C_4$ cycle

Answer 1

The correct option is A Mevalonic acid cycle

Biosynthesis of cytokinin takes place via mevalonic acid cycle. It is also results in synthesis of gibberellic acid and abscisic acid. Mevalonic acid is first converted into isopentenyl pyrophosphate. It is then converted to isopentenyl AMP which is then converted to isopentenyl adenosine. This is finally converted to cytokinin.

Thus, the correct answer is option A.