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Molecular Basis of Inheritance — BIOLOGY STD 12 Science — Question

Bihar BoardEnglish MediumSTD 12 ScienceBIOLOGYMolecular Basis of Inheritance1 Mark
MCQ
Semi-conservative replication of DNA was first demonstrated in:
  • A
    Drosophila melanogaster
  • B
    Escherichia coli
  • C
    Streptococcus pneumoniae
  • D
    Salmonella typhimurium
✓

Answer

  1. Escherichia coli

Explanation:

The semi-conservative replication of DNA was first demonstrated in E. coli. DNA replication is the process of producing two identical replicas from one original DNA molecule.

This biological process occurs in all living organisms and is the basis for biological inheritance.

DNA is made up of two strands and each strand of the original DNA molecule serves as a template for the production of the complementary strand, a process referred to as semi-conservative replication.

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