I don’t know 22 but I think 21 is B
None of these seem to be correct, but it seems c is due to a disproved myth that essentially is the only thing close to an answer.
Answer:
Gene expression is the process the cell uses to produce the molecule it needs by reading the genetic code written in the DNA.
Explanation:
To do this, the cell interprets the genetic code, and for each group of three letters it adds one of the 20 different amino acids that are the basic units needed to build proteins.