The enzyme required for carboxylation in the Calvin cycle is

1. A. PEP carboxylase
2. B. RuBP carboxylase - oxygenase
3. C. Carboxypeptidase
4. D. Hexokinase

Attempt this NEET 2026 Biology question free — pick an option to reveal the correct answer and a step-by-step explanation. Then join NEET Mastery Quest to practise 15,000+ PYQ and 2027-syllabus questions.