Evolution 1

Evolutionary biology is

• the study of history of life forms on earth

• study of pedigrees of life forms on earth

• equivalent to demography

• equivalent to anthropology

Which theory arguments that life on earth came from outer space through spores?

• Theory of panspermia

• Cosmozoic theory

• Spore theory

• More than one option are correct

For a long time, it was believed that life came out of decaying and rotting matter like straw, mud, etc. This was the theory of

• catastrophism

• spontaneous generation

• panspermia

• chemogeny

Who discarded the theory of spontaneous generation once and for all?

• Louis Pasteur

• Francesco Redi

• Spallanzani

• Aristotle

Who showed that life did not evolve from killed yeast in pre-sterilised flasks?

• Oparin

• Haldane

• Louis Pasteur

• Miller

Who proposed that the first form of life could have come from pre-existing non-living organic molecules and it precedes chemical evolution?

• SL Miller

• Oparin and Haldane

• Charles Darwin

• Alfred Wallace

Experimental evidence of chemical evolution was given by

• Miller

• Haldane

• Oparin

• All of these

What did Miller obtained from his experiment?

• Amino acids

• Organic compounds

• Nitrogen bases

• All of these

On early earth, organic acids were produced by the combination of H2 with

• ammonia and methane

• hydrogen

• organic matter

• sulphates and nitrates

The first non-cellular forms of life that originated 3 billion years back was/were

• protein

• polysaccharide

• RNA

• All of these