CAPE Biology Unit 1 · 2008 (Rest of Region) · Paper 1 · Question Q28

In DNA recombinant technology specific genes are harvested then replicated. Which sequence BEST represents the correct sequence of insulin production?

1. (A)Pancreas cell \rightarrow mRNA \rightarrow cDNA \rightarrow bacterial DNA \rightarrow restriction endonuclease \rightarrow reinsertion \rightarrow protein synthesis \rightarrow insulin
2. (B)Pancreas cell \rightarrow cDNA \rightarrow bacterial DNA \rightarrow mRNA \rightarrow restriction endonuclease \rightarrow reinsertion \rightarrow protein synthesis \rightarrow insulin
3. (C)Pancreas cell \rightarrow insulin \rightarrow restriction endonuclease \rightarrow cDNA \rightarrow bacterial DNA \rightarrow mRNA \rightarrow reinsertion \rightarrow protein synthesis \rightarrow insulin
4. (D)Pancreas cell \rightarrow mRNA \rightarrow cDNA \rightarrow bacterial DNA \rightarrow restriction endonuclease \rightarrow reinsertion \rightarrow insulin \rightarrow protein synthesis