Differentiate between Northern, Southern and Western blotting.

Northern, Southern, and Western blotting are all laboratory techniques used to analyze and detect specific molecules, such as DNA, RNA, and proteins, respectively. Each technique has its own purpose and applications in molecular biology research. Here's a brief differentiation between these three blotting techniques:

1. Northern Blotting: Northern blotting is a method used to study and analyze RNA molecules in a sample. The process involves the following steps:

• RNA extraction: Total RNA is extracted from cells or tissues.
• RNA separation: The extracted RNA is separated based on size using gel electrophoresis.
• RNA transfer: The separated RNA molecules are transferred from the gel to ____ __________ _____ ________ ________ __________ ___ ________ ___ _______.
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