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Which principle, proposed by George W. Beadle and E. L. Tatum, explains that a single gene is responsible for the synthesis of one specific enzyme, which in turn drives biochemical reactions influencing an organism's traits?

1. The concept introduced by George W. Beadle and E. L. Tatum suggests that one gene directs the formation of one enzyme, which facilitates reactions determining an organism's characteristics.
2. The idea proposed by George W. Beadle and E. L. Tatum states that a single enzyme is regulated by multiple genes, affecting the biochemical pathways linked to an organism's phenotype.
3. George W. Beadle and E. L. Tatum's hypothesis claims that genes and enzymes are unrelated, and biochemical reactions occur independently of genetic control.
4. According to George W. Beadle and E. L. Tatum, genes produce enzymes randomly, which occasionally influence the organism's observable traits.

Correct answer: The concept introduced by George W. Beadle and E. L. Tatum suggests that one gene directs the formation of one enzyme, which facilitates reactions determining an organism's characteristics.

Solution

The question and all options are identical, so the correct answer is any of the options. This describes the 'one gene-one enzyme' hypothesis proposed by Beadle and Tatum.

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