 
			 
			MCQOPTIONS
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				| 1. | During the carboxylation phase of the Calvin cycle, CO2 combines with | 
| A. | ribulose 1,5 - bisphosphate | 
| B. | phosphoglyceraldehyde | 
| C. | pyruvic acid | 
| D. | oxaloacetic acid | 
| Answer» B. phosphoglyceraldehyde | |