Nucleoprotein gave most probably the first sign of

Options

A. Life
B. Amino acids
C. Soil
D. Sugar

Answer

A

Explanation

Oparin and Haldane proposed that first form of life could have come from pre-existing non living organism molecules (e.g. RNA, protein etc.) and that formation of life was preceded by chemical evolution i.e. formation of diverse organic molecules from inorganic constituents.