What is the DNA and sub part ofDNA?

• Phosphate Group: Forms the backbone of the DNA strand.
• Deoxyribose Sugar: A five-carbon sugar that, along with the phosphate, makes up the sides of the “ladder”.
• Nitrogenous Base: Forms the rungs of the ladder. There are four types of bases that define the genetic code:
  • Adenine (A)
  • Thymine (T)
  • Guanine (G)
  • Cytosine (C) Genomics Education Programme

Key Features of DNA Structure

• : Two long strands twist around each other.
• Base Pairing: The bases pair specificallyA always pairs with T, and C always pairs with Gheld together by hydrogen bonds.
• Chain: These nucleotides link together in a chain, forming a polymer known as a polynucleotide. Wikipedia +2

The sequence of these bases (e.g., A-T-T-G-C-A) determines the genetic information, such as instructions for making proteins. MedlinePlus (.gov) +1

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