⏰ when
When was DNA first identified as the hereditary material?
Quick Answer
In 1944, Oswald Avery and colleagues showed that DNA carried genetic information. This was a major turning point in genetics.
The Full Story
In 1944, Oswald Avery, Colin MacLeod, and Maclyn McCarty published experiments showing that DNA, not protein, was the substance responsible for hereditary transformation in bacteria. Their work built on Frederick Griffith's 1928 discovery of bacterial transformation. The finding was not immediately accepted by everyone, but it became a landmark in genetics. It helped set the stage for the later discovery of DNA's double-helix structure in 1953.
Key Facts
1.Avery-MacLeod-McCarty experiment published in 1944
2.Frederick Griffith's transformation work dates to 1928
3.DNA's structure was solved in 1953
YouTube Angle
Suggested video title for this topic:
"The experiment that proved genes were made of DNA"
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