Science: Viruses Part 3

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LaurenCamp29
ID:
200992
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Science: Viruses Part 3
Updated:
2013-02-16 15:31:09
Tags:
part science bio virus viruses biology soph taylor
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  1. What does tRNA bring to the ribosome for Protein Synthesis?
    (2)
    • Anticodon
    • Amino Acid
  2. What are the 2 steps of Protein Synthesis and what do they do?
    • Transcription:
    • DNA makes RNA

    • Translation:
    • RNA makes proteins
  3. Change in the nucelotide sequence of an organisms' DNA
    Mutation
  4. What are the 2 types of Mutations?
    • Point Mutation
    • Frame-shift mutation
  5. Mutations:
    One nucleotide is substituted for another
    Point Mutation
  6. Mutations:
    Changes entire sequence beyond mutant DNA code
    Frame-shift mutation
  7. What are the 3 types of Point Mutations?
    • Silent
    • Missense
    • Nonsense
  8. -Point Mutation that does not result in a change to the amino acid sequence of a protein
    -ex:
    GAA=GluĀ 
    GAG=Glu
    (they still get the same amino acid)
    Silent Mutation
  9. -Point Mutation that results in a codon that codes for a different amino acid
    -ex:
    GAA=glu
    GAC=asp
    (their amino acids change)
    Missense Mutation
  10. -Point Mutation that results in a codon that codes for a "stop codon"
    -ex:
    UAU=Tyr
    UAA=STOP
    Nonsense Mutation
  11. What are the 2 Frame-shift mutations?
    • Insertion
    • Deletion
  12. Frame-shift Mutation that is an addition of one or more nucleotide base pairs into a DNA sequence (everything gets moved over)
    Insertion
  13. Frame-shift mutation that is a a subtraction of one or more nucleotide base pairs from a DNA sequence
    Deletion
  14. Which Frame-shift mutation is usually just a result of error in DNA replication?
    Insertion
  15. What makes DNA unique?
    The fact that the nitrogen bases can go in any order
  16. What is the start codon?
    MET
  17. Is it Translation or Transcription where A goes with U?
    Transcription

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