Sponsor Area

Evolution

Question
CBSEENBI12003289

The correct sequence for the formation of chemicals on the primitive earth is

  • NH3, protein, carbohydrate and nucleic acid

  • NH3, water, nucleic acids and proteins

  • NH3, nucleic acids, protein and carbohydrate

  • protein, carbohydrate, water and nucleic acids

Solution

B.

NH3, water, nucleic acids and proteins

As the earth cooled, free atoms in the atmosphere formed inorganic molecules (including H2O and NH3) which interacted to form sugars and then proteins and nucleic acids.