Question

question 3 of 10
what was the purpose of miller and ureys experiment?
a. to find out if prokaryotes have genetic information
b. to find out how biological molecules could have first formed
c. to find out if dna carries genetic information
d. to find out if the protists evolved from the eukaryotes

Explanation:

Miller and Urey's experiment simulated conditions thought to be present on early Earth. They used gases like methane, ammonia, hydrogen, and water vapor, and applied electrical sparks (simulating lightning). The purpose was to test the hypothesis that simple inorganic molecules could react to form more complex biological molecules (like amino acids) under such conditions, which would help understand how life's building - blocks might have originated. Option A is incorrect as prokaryotes and their genetic information were not the focus. Option C (DNA carrying genetic information) was not the aim of this experiment. Option D is wrong as protists and eukaryotes' evolutionary relationship was not the question in this experiment.

Answer:

B. To find out how biological molecules could have first formed