Setting up a polymerase chain reaction (PCR), Institute of Child Health, London, May 2000.

Setting up a polymerase chain reaction (PCR), Institute of Child Health, London, May 2000.
3 4 c m
40cm
actual image size: 32cm x 26cm

Description

Some of the DNA in bones and teeth can last for many years after a person has died. Scientists can examine DNA from people murdered a century ago, or even from 3000-year-old ancient Egyptian mummies by using a PCR. PCR makes millions of exact copies of a piece of DNA in just under an hour or so, thus allowing scientists to extract DNA from tiny samples that would be too small for other methods.

Image Details

Image Ref.
 
10322159

© Science Museum / Science & Society Picture Library

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