Erwin Chargaff, 1950 :: CSHL DNA Learning Center

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Erwin Chargaff, 1950

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The DNA molecule is shaped like a twisted ladder.

erwin chargaff

  • ID: 16012
  • Source: DNALC.DNAi

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Erwin Chargaff

15690. Erwin Chargaff

Image of Erwin Chargaff

  • ID: 15690
  • Source: DNAi
Gallery 19: Erwin Chargaff, 1947

16429. Gallery 19: Erwin Chargaff, 1947

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

  • ID: 16429
  • Source: DNAFTB
Complementary base pairing, Erwin Chargaff

15250. Complementary base pairing, Erwin Chargaff

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

  • ID: 15250
  • Source: DNAi
First impression of Watson and Crick, Erwin Chargaff

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
Chargaff's ratios, 3D animation with narration

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
Video 15: Thomas Sakmar, clip 3

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
Discovering the rules of complementary base pairing, Erwin Chargaff

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

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
"Wanted: Better Babies: How Shall We Get Them?" by Ellsworth Huntington, Eugene Robison, Ray Erwin Baber, and Maurice R. Davie, People (April 1931) (4)

11526. "Wanted: Better Babies: How Shall We Get Them?" by Ellsworth Huntington, Eugene Robison, Ray Erwin Baber, and Maurice R. Davie, People (April 1931) (4)

"Wanted: Better Babies: How Shall We Get Them?" by Ellsworth Huntington, Eugene Robison, Ray Erwin Baber, and Maurice R. Davie, People (April 1931) (4)

  • ID: 11526
  • Source: EA
"Wanted: Better Babies: How Shall We Get Them?" by Ellsworth Huntington, Eugene Robison, Ray Erwin Baber, and Maurice R. Davie, People (April 1931) (3)

11525. "Wanted: Better Babies: How Shall We Get Them?" by Ellsworth Huntington, Eugene Robison, Ray Erwin Baber, and Maurice R. Davie, People (April 1931) (3)

"Wanted: Better Babies: How Shall We Get Them?" by Ellsworth Huntington, Eugene Robison, Ray Erwin Baber, and Maurice R. Davie, People (April 1931) (3)

  • ID: 11525
  • Source: EA
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