Biology : PU-CET (U.G) 2017 Panjab University Entrance Exam With Answers

Practice Mode:
23.

The Most Accepted Theory Of Origin Of Life Was Proposed By :

A: Oparin And Haldane
B: Miller And Urey
C: Darwin And Huxley
D: Stebbins And Wright

The answer is: A

Explanation

The most accepted theory of the origin of life was proposed by A: Oparin and Haldane.

Both scientists independently proposed in the 1920s that life on Earth originated from a "primordial soup" of organic molecules, which were formed through a combination of atmospheric gases, such as methane, ammonia, and water vapor, and energy from sources such as lightning or volcanic activity. This theory is commonly known as the "primordial soup theory" or the "Oparin-Haldane hypothesis". The Miller-Urey experiment in 1952 provided experimental evidence to support this theory by showing that the conditions present in the early Earth's atmosphere could indeed lead to the formation of simple organic molecules such as amino acids.