DNA

• What is the structure of DNA?

  A double helix of paired bases
• What does DNA contain that is essential for an organism?

  All of an organism's genetic material
• How is DNA arranged in cells?

  Into chromosomes
• What are chromosomes made of?

  • Long molecules of coiled up DNA
  • Arranged into short sections called genes
• What is the shape of DNA?

  A double helix
• What are the components of a DNA nucleotide?

  A sugar, a phosphate group, and a base
• How many different bases does DNA have?

  Four
• What are the four bases found in DNA?

  A (adenine), C (cytosine), G (guanine), and T (thymine)
• What is complementary base-pairing in DNA?

  A always pairs with T, and C always pairs with G
• What keeps the two DNA strands tightly wound together?

  Cross links between complementary bases
• What defines a polymer in the context of DNA?

  • Large, complex molecules
  • Composed of long chains of monomers
  • DNA is a polymer made up of nucleotide monomers
• What are monomers in the context of DNA?

  Small, basic molecular units
• What is the relationship between DNA and nucleotides?

  DNA is made up of nucleotide monomers