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MCQ practice · SSC Biology Board questions · Chapter 12: Heredity in Organisms and Biological Evolution

Rajshahi Board 2023

From which did the beginning of life occur?

Think it through first, then pick an option.

  1. a Amino acid
  2. b Nucleic acid
  3. c Protovirus
  4. d Nucleoprotein
Answer and explanation

Correct answer: d Nucleoprotein

Nucleoprotein gained the power of replication and started life.

Why the other options are wrong

  • a Amino acid: Amino acids join nucleic acids to make nucleoprotein; they do not start life alone.
  • b Nucleic acid: Nucleic acid too is not alone; with amino acids it makes nucleoprotein.
  • c Protovirus: Protovirus came after nucleoprotein. The right answer is Nucleoprotein.