Question

Assertion :Stanley Miller could work on experimental evidence of origin of life because of guidance of Harold Urey. Reason: H. Urey was geochemist, cosmochemist and teacher of S. Miller.

• A. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
• B. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.
• C. Assertion is correct but Reason is incorrect.
• D. Both Assertion and Reason are incorrect.

Answer 1

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

Stanley Lloyd Miller was a Jewish-American chemist who made landmark experiments in the origin of life by demonstrating that a wide range of vital organic compounds can be synthesized by fairly simple chemical processes from inorganic substances. His research publication in 1953 catapulted him to instant fame and has been popularised as the Urey-Miller experiment or more appropriately, the Miller experiment.
Following the customary seminar of the university, which a graduate student is obligated to attend, he attended the chemistry seminar in which the Nobel laureate Harold Urey gave a lecture on the origin of solar system and how organic synthesis could be possible under reducing environment, such as the primitive Earth's atmosphere. Miller was immensely inspired. After a year of fruitless work with Teller and the prospect of Teller leaving Chicago, Miller was prompted to approach Urey in September 1952 for a fresh research. Urey was not immediately enthusiastic on Miller's interest in prebiotic synthesis, as no successful works had been done and he even suggested working on meteorite thallium. With persistence Miller persuaded Urey and he eventually earned his degree in 1954 and a long-lasting reputation. Thus, option A is correct.