Can someone please tell me if this is DNA or RNA?

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Giorgia Pertile

https://www.researchgate.net/post/how_do_I_distinguish_between_DNA_and_RNA_on_a_gel

Read this.

Manuel Balparda

Is not clear in the picture, but if you see two close bands is possible that you have RNA. A single band is DNA. Hope that you solve the problem!

Benyam Zenebe

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.