Gallery 19: Erwin Chargaff, 1947

Erwin Chargaff was the first to accurately measure nucleotide amounts in DNA.

erwin chargaff, nucleotide, dna

  • ID: 16429
  • Source: DNALC.DNAFTB

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15690. Erwin Chargaff

Image of Erwin Chargaff

  • ID: 15690
  • Source: DNAi

16012. Erwin Chargaff, 1950

The DNA molecule is shaped like a twisted ladder.

  • ID: 16012
  • Source: DNAi

15251. Discovering the rules of complementary base pairing, Erwin Chargaff

Erwin Chargaff talks about his discovery – a major step for building the DNA model.

  • ID: 15251
  • Source: DNAi

15495. Chargaff's ratios, 3D animation with narration

Erwin Chargaff found that in DNA, the ratios of adenine (A) to thymine (T) and guanine (G) to cytosine (C) are equal. This parity is obvious in the final DNA structure.

  • ID: 15495
  • Source: DNALC.DNAi

15250. Complementary base pairing, Erwin Chargaff

Erwin Chargaff talks about his name for Chargaff's ratios.

  • ID: 15250
  • Source: DNAi

15252. First impression of Watson and Crick, Erwin Chargaff

Erwin Chargaff reads a passage from his book Heraclitean Fire: Sketches from a Life Before Nature, describing his impressions of Crick and Watson.

  • ID: 15252
  • Source: DNAi

16422. Animation 19: The DNA molecule is shaped like a twisted ladder.

James Watson and Francis Crick explain how they solved the structure of DNA. Erwin Chargaff explain how he measured the levels of each of the four nitrogenous bases.

  • ID: 16422
  • Source: DNALC.DNAFTB

16354. Video 15: Thomas Sakmar, clip 3

The work of Erwin Chargaff and how it contributed to the downfall of Levene's tetranucleotide theory.

  • ID: 16354
  • Source: DNAFTB

15682. DNA nucleotides

DNA nucleotides (black letter tiles) matched in groups of two to amino acids (red letter tiles).

  • ID: 15682
  • Source: DNAi

15617. DNA nucleotide mutation

A single DNA nucleotide undergoes a "point" mutation, changing an A to a T.

  • ID: 15617
  • Source: DNAi