試題詳解

26. All are true for cDNA libraries EXCEPT:
(A) reverse transcriptase synthesizes a DNA strand complement of the mRNA templates.
(B) mRNA templates are isolated using oligo (dA)-cellulose chromatography.
(C) linkers are added and the cDNA is cloned into suitable vectors.
(D) the cDNA are copies from mRNA templates.
(E) all are true