A central idea of biology, protein synthesis, occurs in what order?
I. DNA leaves the nucleus
II. Ribosome translates the mRNA into a protein
III. proteins are transferred to the cisternae of the Endoplasmic Reticulum (ER)
IV. An mRNA copy of DNA is transcribed
A. IV, II, III
B. I, IV, II, III
C. I, III, II, IV
D. I, II, IV