The Living World Question 2

Question: Assertion : Miller used four gases-methane, oxygen, hydrogen and water vapour for formation of simple organic compounds. Reason : He prepared some amino acids in his apparatus.

Options:

A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C) If the assertion is true but the reason is false

D) If the assertion is false but reason is true

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Answer:

Correct Answer: D

Solution:

Miller circulated four gases-methane, ammonia, hydrogen and water vapour in an air tight apparatus and passed electrical discharges from electrodes.

He passed the mixture through a condenser.

He circulated the gases continuously in this way for one week and then analysed the chemical composition of the liquid inside the apparatus.

He found a large number of simple organic compounds including some aminoacids such as alanine, glycine and aspartic acid.