Home › glossary › dna

What is DNA (Deoxyribonucleic Acid)? Definition, Meaning & Example

A molecule that carries genetic instructions for all known organisms, structured as a double helix of nucleotides.

TL;DR: A molecule that carries genetic instructions for all known organisms, structured as a double helix of nucleotides.

By Syllab.in · Updated Jun 17, 2026

Explore:

  • Syllabus
  • Practice
  • Mock Tests
  • NCERT Solutions
  • Coding
  • GK Quiz
  • Career Predictor
  • AI Tutor
  • Live Quiz
  • Doubt Solver
  • Microlearning
  • Free Alternatives
  • Kids Zone
  • Study Room
  • Calculators
  • Worksheets

Syllab.in — Free learning for Indian students, Class 1–12