Bio181FInal

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Anonymous
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Bio181FInal
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2012-04-24 03:12:29
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Flashcards for ASU Professor Mossman's Biology 181 final
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  1. In what phase does DNA repair processes occur?
    G1
  2. What are the base pair "rules"?
    • A-U
    • T-A
    • G-C
    • C-G
  3. When phase do sister chromatids begin to arise?
    S phase
  4. When do sister chromatids segregate?
    mitotic anaphase
  5. T/F sister chromatids contain identical versions of the same genetic information in mitotic division
    True
  6. When do sister chromatids join?
    during prophase and mataphase
  7. Osmosis is a specific form of_______
    Diffusion
  8. T/F daughter cells are genetically identical to parent cells.
    True
  9. What is the information flow in Biology?
    DNA to RNA to Protein
  10. What form as a result of accidental nondisjunctions?
    Trisomies and momosomies
  11. What is deoxyribose composed of?
    Deoxyribose, nitrogenous bases, and a phosphate
  12. What is osmosis?
    diffusion of water across a membrane
  13. What is transcription?
    synthesizing an RNA molecule using DNA as a template
  14. What is involved in semiconservative replication?
    each of the origional strands act as a template for new strands
  15. what is facilitated diffusion?
    using a carrier protein/transmembrane protein to cross a membrane
  16. What does RNA polymerase do?
    directs mRNA synthesis by transcription of DNA message
  17. If the gentic code was based on 2 nitrogenous bases per codon, what would the maximum number of amino acids be?
    16
  18. What is determined by independent assortment?
    tbe proportion of genetic material in a gamete inherited from a parent.
  19. Sickle-cell anemia is caused by a _____mutation
    missense
  20. When placed in a hypertonic solution, what will happen to animal cells?
    They will shrink
  21. What requires the action of DNA polymerase?
    synthesis of a complimentary strand of DNA
  22. What does DNA do?
    Transfers information form one generation to another in eukaryotes.
  23. What are centromeres?
    The connect chromatids.
  24. What link adjacent epithellial cells that ine the lumen of body cavities such as the small intestine?
    Tight junctions
  25. What is the process for bringing large particles into a cell?
    phagocytosis
  26. When does DNA replication occur?
    During S phase
  27. What is an example of post-transcriptional modification of mRNA?
    adding a poly A tail to the 3' end
  28. What are characteristics of XP?
    Deffective DNA repair and sensitivity to solar light.
  29. What removes a DNA sequence furing excicion repair?
    endonuclease
  30. What transport goes from low concentration to high concentrations?
    Active transport
  31. T/F DNA segments are encoded on the template strand that are identical to the mesage encoded on the complementary strand.
    False
  32. What does DNA wrap around within the neucleosome?
    Histones.
  33. Where does translation occur?
    Cytoplasm
  34. Where does transcription occur?
    Neucleus
  35. Frameshift mutations are a result of______
    crossing over
  36. T/F Phosphorlaion of a structure alers its three dimentional structure
    True
  37. During prokaryotic division, how di two chromosomes sperate?
    attachment to sperate regions of the cell membrane
  38. CDK catalyzes the phosphorlation if targeted protiens which_________
    changes the shape and function of targeted cells.
  39. How many neucleotides does a codon have?
    3
  40. T/F Codons can code for multipe amino acids
    False
  41. What is found in DNA?
    C, O, N, H
  42. T/F a single gene can be transcribed by several RNA polymerases at once.
    True
  43. What is a reason for redundancy in genetic code?
    Silent mutations
  44. what is exocytosis?
    When materials are packages and released into the ECF
  45. What phase does crossing over occur in?
    Prophase 1
  46. What reads DNA stands?
    RNA polymerase
  47. T/F the stop codon codes for an amino acid
    False
  48. What causes genetic variances in haploid cells?
    Crossover
  49. The presence of a _______sequence determines the DNA template used to synthesize a protein.
    promoter

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