I have isolated gDNA from cancer tissue and later run it on 0.8% Agarose Gel Electrophoresis for 30 mins at 50 volts. I got the bands as attached in the pic below. Can you please clarify me what is DNA & what is RNA?.
This may be DNA although it is not clear in the picture. In the case of RNA you are expected to see two bands from the same sample for the two subunits of ribosomal RNAs: 18S and 28S RNAs and your mRNA would form a smear instead of a band.