DNA molecular model, 1993.
4 0 c m
 
30cm
actual image size: 22cm x 32cm

DNA molecular model, 1993.

© Science Museum / Science & Society Picture Library

Description

A replica of the original DNA model built by Francis Crick (b 1916) and James Dewey Watson (b 1928) while working in the Medical Research Council Unit at the Cavendish Laboratory in Cambridge in 1953. They discovered that DNA (deoxyribonucleic acid) is made up of a double helix (ie two strands) of phosphate 'backbones' joined by complementary sequences of base pairs (units of genetic information). To replicate, the two chains unwind and act as templates.
 

Image Ref.

10324437
 

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