James D. Watson and Francis Crick proposed the double helix structure of DNA in 1953. It was based from an x-ray diffraction image taken by Rosalind Franklin and Raymond Gosling and information on how the bases paired, which was acquired from Erwin Chargaff.
Maurice Williams belongs here as well
James Watson
James. D. Watson & Francis Crick
James watson
The first correct shape was the double helix by Watson and Crick. However, there were earlier incorrect models, for example the incorrect triple helix model proposed by Linus Pauling. Even the first model by Watson and Crick turned out to be incorrect; they had it inside out compared to the correct model.
These were Watson and Crick while working on DNA. They proposed the double helix model of DNA.
double helix, twisted ladder, spiral staircase.
Rosalind Franklin
James watson
A double helix.
The first correct shape was the double helix by Watson and Crick. However, there were earlier incorrect models, for example the incorrect triple helix model proposed by Linus Pauling. Even the first model by Watson and Crick turned out to be incorrect; they had it inside out compared to the correct model.
DNA is a double helix made of two strands linked together with hydrogen bonds.
These were Watson and Crick while working on DNA. They proposed the double helix model of DNA.
Double Helix
double helix
double helix
double helix, twisted ladder, spiral staircase.
The problem of replication could not be worked out in triple helix.
The double helix model became the accepted structure of DNA because it fit the experimental evidence, especially from X-ray crystallography of the DNA molecule.
Double helix ladder