26.
In terpenes biosynthesis pathway, 3 acetyl-CoA are joined together stepwise to form mevalonic acid. Which one of the following three steps is required by mevalonic acid to form isopentenyldiphosphate or isopentenyl pyrophosphate (IPP)?
A:
Pyrophosphorylation, Decarboxylation and Dehydration
B:
Alkylation, Pyrophosphorylation and Decarboxylation
C:
Methylation, Dehydration and Alkylation
D:
Phosphorylation, Carboxylation and Methylation
The answer is:
A