MCQOPTIONS
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MCQOPTIONS
| 1. |
Phosphoribosyl pyrophosphate is a precursor of tryptophan and ____________ |
| A. | Tyrosine |
| B. | Histidine |
| C. | Phenylalanine |
| D. | Isoleucine |
| Answer» C. Phenylalanine | |