Question

the proof for the fact that protein synthesis occurs through.......... was given by George beadle and edward tatum

Answer 1

The answer is enzyme.

The proof for the fact that protein synthesis occurs through enzymes was given by George Beadle and Edward Tatum. They proposed the one gene one enzyme theory. According to this theory, one gene accounts for producing one protein. The scientists won the Nobel Prize for this concept in 1958.
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Answer 2

Enzyme is the answer