The first form of life arose slowly through evolutionary forces from non-living molecules by

Which was absent in the atmosphere at the time of origin of life?

Theory of natural selection dwells on

Genetic drift is change of

Genetic drift operates only in

Dinosaurs suddenly disappeared from the earth about

Which of the following are homologous organs?

Convergent evolution is illustrated by

Which of the following factor does not affect Hardy-Weinberg’s equilibrium?

The Miller-Urey abiotic synthesis experiment (and other subsequent, similar experiments) showed that…

simple organic molecules can form spontaneously under conditions like those thought to prevail early in the earth’s history.
the earliest life forms introduced large amounts of oxygen to the atmosphere.
life can be created in a test tube.
long chains of DNA can form under abiotic conditions.

Solution

In 1953, Stanley Miller and Harold Urey created, in the laboratory, conditions comparable to those of early Earth,with water vapour, hydrogen, methane, and ammonia. The Miller-Urey apparatus produced a variety of amino acids and other organic compounds found in living organisms today.

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