The Structure of Dna

• What does DNA stand for?

  Deoxyribonucleic Acid
• What are DNA Nucleotides made of?

  Sugar (deoxribose), Phosphate and a Base
• What is the bonds that join the nucleotides together?

  Sugar-Phosphate bonds
• What bonds join the bases together?

  Hydrogen Bonds
• Name the base pairings?

  Adenine-Thymine and Cytosine-Guanine
• What is the shape of DNA?

  Double Helix
• Which side is the deoxyribose sugar at?

  3' end
• What side is the Phosphate at?

  5'end
• What are Prokatyotes?

  Organisms lacking membrane bound organelles

  Eg- Bacterial cells - no membrane bound nucleus
• Where is the extra DNA stored in a Prokaryote?

  Plasmid
• What are Eukaryotes?

  Organisms that have membrane bound organelles

  Eg- Plant, Animal and Fungal cells - have a nucleus
• Where is extra DNA stored in a Eukaryote?

  Mitochondria and Chloroplasts
• What are DNA packaged with?

  Histones