The stages below take part in protein synthesis. 1. amino acids joined together in sequence 2. mRNA travels into the cytoplasm 3. mRNA moving through a ribosome 4. DNA in the nucleus What is the correct order in which they are involved when proteins are made?
- A$1 \rightarrow 3 \rightarrow 2 \rightarrow 4$
- B$3 \rightarrow 2 \rightarrow 1 \rightarrow 4$
- C$4 \rightarrow 2 \rightarrow 3 \rightarrow 1$
- D$4 \rightarrow 3 \rightarrow 2 \rightarrow 1$