試題詳解

55. Why is it difficult to get bacteria to express genes directly from eukaryotic DNA?
(A) Eukaryotic genes are not transcribed in a single transcript.
(B) Eukaryotic genes do not contain enhancer sequences.
(C) Eukaryotic genes contain introns.
(D) Eukaryotic genes lack controlling regions.
(E) Eukaryotic genes may contain transposons.