Genetic engineering takes place in several stages. 1 human DNA is placed into bacterial plasmid DNA 2 the recombinant plasmid is inserted into bacteria 3 bacterial plasmid DNA is cut by a restriction enzyme 4 human DNA is cut by a restriction enzyme Which sequence shows the correct order for genetic engineering?
- A$1 \rightarrow 2 \rightarrow 4 \rightarrow 3$
- B$2 \rightarrow 3 \rightarrow 4 \rightarrow 1$
- C$3 \rightarrow 2 \rightarrow 4 \rightarrow 1$
- D$4 \rightarrow 3 \rightarrow 1 \rightarrow 2$