Bio 004, College of the Desert

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  1. What are the three things to know about DNA?
    • DNA: information storage, found in nucleus.
    • 1) it is Deoxyribose.
    • 2) uses the base pairing of A,C,G,T.
    • ie: A-T, C-G
    • 3) it is Double stranded. {alpha - Helix}
    • side note:
    • A = adenine
    • T = Thymine
    • C = Cytosine
    • G = Guanine
  2. What are the three things to know about RNA?
    • 1) it is Ribose.
    • 2) uses the base pairing of A,C,G,U.
    • ie: A-U, C-G.
    • 3) it is single stranded.
    • side note:
    • A = adenine
    • U = Uracil
    • C = Cytosine
    • G = Guanine
  3. Replication
    DNA making copies of DNA.
  4. Transcription
    DNA making copies of RNA.
  5. Translation
    Protein synthesis (Nucleic Acids --> Amino Acids)
  6. mRNA
    • (messenger) delivers information.
    • transports information to cytoplasm. (?)
  7. Codon
    Triplet - combination of 3-Nucliotides: each Codon codes for an Amino Acid (AA) or a stop codon.
  8. rRNA
    (ribosomal) transfers Amino Acids. Decodes the mRNA into vatrious amino acids and assisting in translation.
  9. tRNA
    (transfer) contsins the anticodon. Connects amino acid to the protien located at the ribosom.
  10. Base Pairing
    Connecting C-G, A-(U or T, depending on RNA or DNA).
  11. Match the following DNA strand to it's RNA stand:
    A-A-T-G-G-T-C-C-A-C-C-G-G-C-T-G
    • Given:
    • A-A-T-G-G-T-C-C-A-C-C-G-G-C-T-G
    • U-U-A-C-C-A-G-G-U-G-G-C-C-G-A-C
    • RNA
  12. How many nucleotides are in 150 protiens?
    • 150p x 3n/1p = 450 nucleotides
    • 3-nucleotides = 1-protein
    • n = nucleotide
    • p = protein
  13. How many protiens are in 600 nucleotides?
    • 600n x 1p/3n = 200 protiens
    • 3-nucleotides = 1-protein
    • n = nucleotide
    • p = protein
  14. Use one word to describe the relationship between gene sequence (DNA) and mRNA sequence it transcribes.
    Complimentary
  15. What is the function of the following extraction expariment:
    Wheat germ:
    Dish detergent:
    Alcohol:
    • Wheat Germ: source of DNA
    • Dish detergent: breaks down the cell membrane
    • Alcohol: Seperates DNA fromthe water.
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Bio 004, College of the Desert
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