Question

Who confirmed the theory of origin of life?

Answer 1

The theory of the origin of life:

• The theory of the origin of life was proposed by a British scientist named J.B.S. Haldane.
• He suggested that life originated from inorganic materials like hydrogen sulfide, ammonia, and methane as they were present on early earth.
• This theory is also known as the “theory of the chemical origin of life” or “naturalistic theory”.

Confirmation of theory of the origin of life:

The theory of Haldane regarding the origin of life was confirmed by Stanley L. Miller and Harold C. Urey in 1953.

• They assembled an apparatus in such a way that the atmosphere similar to the earth's early atmosphere stays there. Gases like methane, hydrogen sulfide, and ammonia were there in the apparatus along with water. This apparatus lacked oxygen gas.
• The apparatus was kept at a temperature that is just below 100°C. For about one long week, electric sparks were sent through it so that the gases can get mixed.
• After the completion of one week, it was observed that 15% of the carbon of the methane had become transformed into simple carbon compounds.
• Amino acid molecules from which proteins are made were present.