This document covers the DISTINCTION STANDARD for UNIT 11 Assignment D so please download this presentation with it.
D4: Evaluate the possible future uses of genetic engineering technologies.
, What is a polymerase chain
reaction?
PCR is a chemical reaction used by scientists to amplify fragments of
DNA. This chemical reaction allows small amounts of DNA copies to
duplicated into several copies. These several copies are also known a
the target sequence. Not only is polymerase used in DNA replication
but it is used in transcription.
Polymerase chain reaction is a fast cheap and easy way of replicating
specific DNA fragments from DNA sources.
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