Which procedure is used to identify a specific RNA within a mixture of many RNA molecules?
A) Western blotting
B) Northern blotting
C) Southern blotting
D) Eastern blotting

Question

Quizplus · Accepted Answer

Out of the given options, Northern blotting is the only procedure that is used to identify a specific RNA within a mixture of many RNA molecules. Northern blotting involves the separation of RNA molecules by gel electrophoresis and their transfer to a membrane. The membrane is then hybridized with a labeled probe that is complementary to the RNA of interest. By detecting the labeled probe, the presence and quantity of the specific RNA molecule in the mixture can be determined. Western blotting is used for protein detection, Southern blotting is used for DNA detection, and Eastern blotting is not a commonly used technique.

Which Procedure Is Used to Identify a Specific RNA Within