Question

The experiment conducted by Stanley L. Miller and Harold C. Drey in 1953 to show how organic molecules arise in nature, they assembled an atmosphere consisted of:

• A. ammonia, methane and oxygen
• B. ammonia, hydrogen and oxygen
• C. ammonia, hydrogen and methane
• D. methane, hydrogen sulphide and oxygen

Answer 1

Answer: (C)

ammonia, hydrogen and methane

In 1953 Miller & Urey conducted an experiment which would change the approach of science into the origin of life. The gases they used were methane, ammonia, hydrogen and water vapours.

Amino acid compounds were formed which can form proteins. These are the basic components of cellular life which could be formed by providing a reducing atmosphere on the early earth.

Hence, option $C$ is correct.