During dark reaction, for the fixation of carbon, the three carbon atoms of each molecule of 3 –phosphogylceric acid (PGA) are derived from

During dark reaction, for the fixation of carbon, the three carbon ato

1.	During dark reaction, for the fixation of carbon, the three carbon atoms of each molecule of 3 –phosphogylceric acid (PGA) are derived from
A.	RuBP only
B.	CO2 only
C.	RuBP + CO2
D.	RuBP + CO2 + PEP.
Answer» D. RuBP + CO2 + PEP.