What hybridization technique can be used to confirm if two genes are components of an operon by estimating transcript size?

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Northern blotting is a hybridization technique that can be used to estimate the size of a transcript and confirm if two genes are components of an operon. This involves the separation of RNA molecules based on size using gel electrophoresis, followed by transfer to a membrane and hybridization with a labeled DNA probe specific to the gene(s) of interest. The resulting band pattern can confirm if the genes are co-transcribed within the same transcript, which would suggest they are part of an operon.

What Hybridization Technique Can Be Used to Confirm If Two