What does “PCR (polymerase chain reaction)” actually mean in Biotechnology & its Applications, and why does it matter for NEET?
a technique that makes millions of copies of a DNA segment using primers and heat-stable Taq polymerase.
In simple words: a technique that makes millions of copies of a DNA segment using primers and heat-stable Taq polymerase. Getting PCR (polymerase chain reaction) clear matters because NEET questions on Biotechnology & its Applications usually test this idea directly, not just a formula you memorised.
Key point
PCR (polymerase chain reaction)
Common mistake
confusing PCR (which amplifies DNA) with gel electrophoresis (which separates it).
Memory tip
PCR = photocopier for DNA; electrophoresis = sorting DNA by size.
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