49. Nucleic acid hybridization is a commonly employed procedure in molecular biology to investigate all except:
(A) evolutionary relationships.
(B) specific genes against a vast background.
(C) specific probe based isolation of genes.
(D) quantify gene expression.
(E) All are true.
答案：99
統計：A:0,B:0,C:0,D:0,E:0
難度：計算中