40. Because eukaryotic genes contain introns, their transcripts cannot be translated by bacteria, which lack RNA-splicing machinery. But if you want to engineer a bacterium to produce a eukaryotic protein, you can synthesize a gene without introns. A good way to do this is to
(A) use a nucleic acid probe to find a gene without introns
(B) work backward from mRNA to make a version of the gene without introns
(C) alter the bacteria so that they can splice RNA
(D) use a restriction enzyme to remove introns from the gene
(E) use a phage to insert the desired gene into a bacterium

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