If you go back in the history approx. $4500$ million years back when atmosphere was reducing the organism were

  • A

    Autotroph, aerobic

  • B

    Chemo-autotroph, anaerobic

  • C

    Chemo-heterotroph, anaerobic

  • D

    Heterotroph, anaerobic

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Inorganic evolution means

The most accepted theory of organic evolution

The concept of chemical evolution is based on

  • [AIPMT 2007]

When we talk of functional macromolecules (e.g. proteins as enzymes, hormones, receptors, antibodies etc), towards what are they evolving ?

Finding of miller's experiment on origin of life has provided evidence for the