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Bio 110 Final: Chapter 14

Usuario eliminado 10 preguntas Actualizado el 13 dic 2017

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  1. 1A mutation removes a single base pair within the coding sequence of a gene and inactivates the protein encoded by the gene. Such a mutation is
    1. AA silent mutation
    2. BA missense mutation
    3. CA nonsense mutation
    4. DA frameshift mutation
    5. EBoth b and c
  2. 2Some point mutations lead to an mRNA that produces a shorter polypeptide. This type of mutation is known as a _________ mutation.
    1. Aneutral
    2. Bsilent
    3. Cmissense
    4. Dnonsense
    5. Echromosomal
  3. 3In which location is a mutation least likely to affect gene function?
    1. APromoter
    2. BCoding Region
    3. CSplice Junction
    4. DIntergenic Region
    5. ERegulatory site
  4. 4Mutagens can cause mutations by
    1. Achemically altering DNA nucleotides
    2. Bdisrupting DNA replication
    3. Caltering the genetic code of an organism
    4. Dall of the above
    5. Ea and b only
  5. 5The mutagenic effect of UV light is
    1. Athe alteration of cytosine bases and adenine bases
    2. Bthe formation of adenine dimers that interfere with genetic expression
    3. Cthe breaking of the sugar-phosphate backbone of the DNA molecule
    4. Dthe formation of thymine dimers that disrupt DNA replication
    5. Ethe deletion of thymine bases along the DNA molecule
  6. 6The Ames test
    1. Aprovides a way to determine if any type of cell has experienced a mutation
    2. Bprovides a way to determine if an agent is a mutagen
    3. Callows researchers to experimentally disrupt gene activity by causing a mutation in a specific gene
    4. Dprovides a way to repair mutation in bacterial cells
    5. Edoes all the above
  7. 7Xeroderma pigmentosum
    1. Ais a genetic disorder that results in uncontrolled cell growth
    2. Bis a genetic disorder in which the NER System is not fully functional
    3. Cis a genetic disorder that results in the loss of pigment in certain patches of skin
    4. Dresults from the lack of DNA polymerase proofreading
    5. EBoth b and d are true of this disorder.
  8. 8If a mutation eliminated the function of UvrC, which aspect of nucleotide excision repair would not work?
    1. ASensing a damaged DNA site
    2. BEndonuclease cleavage of the damaged strand
    3. Cremoval of the damaged strand
    4. Dsynthesis of a new strand, using the undamaged strand as a template
    5. Enone of the above
  9. 9Cancer cells are said to be metastatic when they
    1. Abegin to divide uncontrollably
    2. Binvade healthy tissue
    3. Cmigrate to other parts of the body
    4. Dcause mutations in other healthy cells
    5. Edo all of the above
  10. 10Oncogenes can be produced by
    1. Amissense mutations
    2. Bgene amplification
    3. Cchromosomal translocation
    4. Dretroviral insertion
    5. Eall of the above

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El usuario ha eliminado su información de asignaturas Test sobre Bio 110 Final: Chapter 14, creado por Usuario eliminado el 13/12/2017.
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Usuario eliminado
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Creado el 13 dic 2017 · actualizado el 13 dic 2017

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