【名词&注释】
离子交换层析(ion exchange chromatography)、亲和层析(affinity chromatography)、Northern印迹杂交(northern blot hybridization)、Southern印迹杂交(southern blot hybridization)、Western印迹杂交(western blotting hybridization)
[单选题]用来鉴定DNA的技术是()
A. Northern印迹杂交
B. 亲和层析
C. Southern印迹杂交
D. Western印迹杂交(western blotting hybridization)
E. 离子交换层析