Correct Option (d)
Reason : Southern hybridisation is a technique used in molecular biology for detection of a specific DNA sequence in DNA samples in which except PCR we use all three methods such as electrophoresis, blotting and autoradiography. PCR is the method used for the amplification of DNA sample. In vitro clonal propagation is characterised by PCR and RAPD.
Correct Option (d) Reason : Southern hybridisation is a technique used in molecular biology for detection of a specific DNA sequence in DNA samples in which except PCR we use all three methods such as electrophoresis, blotting and autoradiography. PCR is the method used for the amplification of DNA sample. In vitro clonal propagation is characterised by PCR and RAPD.