DNA Structure

• DNA


  Genetic material contained in chromosomes in the nucleus
• DNA


  • Polymer made up of two strands
  • Two strands wind around each other to form a double helix
• Nucleotide


  Molecule that makes up DNA polymer
• Nucleotide


  • Contains a phosphate group
  • Contains a sugar molecule
  • Contains a base (A, C, G, T)
• Complementary strands


  The same bases always pair on the opposite strands (C-G, A-T)
• Determining nucleotide sequence of complementary strand


  Given the nucleotide sequence of one strand, work out the nucleotides on the opposite strand
• DNA is involved in protein synthesis