Northern vs. Southern vs. Western blot
Which technique detects a specific mRNA in a tissue sample?
Answer D: explanation for every choice
A
Southern blots detect specific DNA sequences.
B
Western blots detect specific proteins using antibodies.
C
ELISA detects and quantifies proteins or antigens using antibodies.
D
Correct. Northern blots detect specific RNA sequences.
TakeawaySNoW DRoP: Southern–DNA, Northern–RNA, Western–protein.
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Reviewed 2026-11-05 by a medical student. Spot an error? Report it with question ID bb49.