AP BIOLOGY

Detailed explanation-1: -The theory that organic compounds arose from the inorganic molecules present on early Earth relies on all of the following assumptions except for one. Which one is an incorrect assumption? The Earth is 4.6 billion years old, allowing sufficient time for evolution to occur.

Detailed explanation-2: -The Oparin-Haldane hypothesis suggests that life arose gradually from inorganic molecules, with “building blocks” like amino acids forming first and then combining to make complex polymers.

Detailed explanation-3: -J.B.S. Haldane, a British scientist, suggested in 1929 that life must have developed from the simple inorganic molecules which were present on earth soon after it was formed.

Detailed explanation-4: -1952 Miller-Urey experiment showed organic molecules forming from inorganic precursors.

Detailed explanation-5: -life. The first idea to capture scientists’ attention was the “primordial soup”: the notion that when Earth was young, the oceans were filled with simple chemicals important for life. These would eventually self-assemble into simple living cells.