AP BIOLOGY

EVOLUTION

EVIDENCE FOR EVOLUTION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The Miller-Urey experiment of 1953 was designed to test the hypothesis that lightning supplied the energy needed to turn atmospheric gases into organic molecules such as amino acids. Which of the following describes why the Miller-Urey theory is widely accepted today?
A
Amino acids spontaneously form from molecules in the atmosphere today.
B
Organic molecules are present today in extremely high concentrations.
C
The process of synthesizing organic molecules from a mixture of gases has been successfully modeled in the laboratory.
D
No other alternative hypotheses have been introduced.
Explanation: 

Detailed explanation-1: -Hence, Miller-Urey designed their chemical experiment to test whether or not the energy required to turn atmospheric gases into organic molecules such as amino acids were supplied by lightning.

Detailed explanation-2: -The Miller-Urey experiment of 1953 was designed to test the hypothesis that lightning supplied the energy needed to turn atmospheric gases into organic molecules such as amino acids.

Detailed explanation-3: -The Miller-Urey experiment, conducted by chemists Stanley Miller and Harold Urey in 1953, is the classic experiment on the origin of life. It established that the early Earth atmosphere, as they pictured it, was capable of producing amino acids, the building blocks of life, from inorganic substances.

Detailed explanation-4: -In the 1950’s, biochemists Stanley Miller and Harold Urey conducted an experiment which demonstrated that several organic compounds could be formed spontaneously (through abiogenesis) by simulating the conditions of Earth’s early atmosphere.

There is 1 question to complete.