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Question
DNA was first proven to be the transforming factor in bacterial cells by ______.
Options
Meischer
Watson and Crick
Griffith
Avery
MCQ
Fill in the Blanks
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Solution
DNA was first proven to be the transforming factor in bacterial cells by Avery.
Explanation:
In 1944, Oswald Avery and his colleagues conclusively proved that this transforming principle was DNA. They used specific enzymes to destroy proteins, RNA, and DNA in the bacterial extract; only the destruction of DNA stopped the transformation from occurring, thereby proving it was the hereditary material.
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