Which scientist(s) suggested early earth was very different from present day and that lightning and volcanic activity catalyzed the creation of organic molecules to form a primordial soup from which life arose?

THE ORIGIN OF LIFE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

Which scientist(s) suggested early earth was very different from present day and that lightning and volcanic activity catalyzed the creation of organic molecules to form a “primordial soup” from which life arose?

A	Oparin-Haldane
B	Miller-Urey
C	Pasteur
D	Spallanzani

Explanation:

Detailed explanation-1: -J.B.S. Haldane independently postulated his primordial soup theory in 1929 in an eight-page article “The origin of life” in The Rationalist Annual. According to Haldane the primitive Earth’s atmosphere was essentially reducing, with little or no oxygen.

Detailed explanation-2: -Stanley Miller simulated conditions thought be common on the ancient Earth. The purpose was to test the idea that the complex molecules of life (in this case, amino acids) could have arisen on our young planet through simple, natural chemical reactions.

Detailed explanation-3: -In 1953, Stanley Miller and Harold Urey did an experiment to test Oparin and Haldane’s ideas. They found that organic molecules could be spontaneously produced under reducing conditions thought to resemble those of early Earth.

Detailed explanation-4: -Assertion: Oparin and Haldane proposed that the first form of life could have come from pre-existing non-living organic molecules.

There is 1 question to complete.

AP BIOLOGY

EVOLUTION

THE ORIGIN OF LIFE