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James Watson and Francis Crick
Science
Cambridge University scientists James Watson and Francis Crick announced to friends that they figured out the chemical structure of DNA on this day in 1953.
Deoxyribonucleic acid is a molecule that encodes genetic information for the growth, development, functioning, and reproduction processes, and is carried by all known living organisms, as well as a number of viruses.
The molecule outlined by Watson and Crick is made up of two polymer strands which connect to form a double helix. Each of these strands is composed of a nucleotide. And each of these nucleotides is made up of one of four nucleobases: cytosine (C), guanine (G), adenine (A), and thymine (T), as well as a sugar molecule (deoxyribose), and a phosphate group.
Continuing on the pioneering work done up to that point, Crick and Watson proposed the first correct model for the double helix structure.
Their discovery along with the work done by Maurice Wilkins and Rosalind Franklin granted them the Nobel Prize for Medicine or Physiology in 1962. Franklin, who had had died of ovarian cancer in 1958 at the age of 37, did not receive proper credit as the prize is only awarded to living contributors.
The findings were published less than two months later in scientific publication Nature.
Deoxyribonucleic acid is a molecule that encodes genetic information for the growth, development, functioning, and reproduction processes, and is carried by all known living organisms, as well as a number of viruses.
The molecule outlined by Watson and Crick is made up of two polymer strands which connect to form a double helix. Each of these strands is composed of a nucleotide. And each of these nucleotides is made up of one of four nucleobases: cytosine (C), guanine (G), adenine (A), and thymine (T), as well as a sugar molecule (deoxyribose), and a phosphate group.
Continuing on the pioneering work done up to that point, Crick and Watson proposed the first correct model for the double helix structure.
Their discovery along with the work done by Maurice Wilkins and Rosalind Franklin granted them the Nobel Prize for Medicine or Physiology in 1962. Franklin, who had had died of ovarian cancer in 1958 at the age of 37, did not receive proper credit as the prize is only awarded to living contributors.
The findings were published less than two months later in scientific publication Nature.
Cambridge University Science
February 28, 1853
Chanez Baali
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photograph | James Watson | Francis Crick | DNA | replication | pairing | Molecular Biology | genetics | chemistry | history | Chargaff Ratios | Erwin Chargaff | science | on this day | double helix
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