Quiz
Bio 110 Final: Chapter 14
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Perguntas do quiz (10)
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
- AA silent mutation
- BA missense mutation
- CA nonsense mutation
- DA frameshift mutation
- EBoth b and c
2Some point mutations lead to an mRNA that produces a shorter polypeptide. This type of mutation is known as a _________ mutation.
- Aneutral
- Bsilent
- Cmissense
- Dnonsense
- Echromosomal
3In which location is a mutation least likely to affect gene function?
- APromoter
- BCoding Region
- CSplice Junction
- DIntergenic Region
- ERegulatory site
4Mutagens can cause mutations by
- Achemically altering DNA nucleotides
- Bdisrupting DNA replication
- Caltering the genetic code of an organism
- Dall of the above
- Ea and b only
5The mutagenic effect of UV light is
- Athe alteration of cytosine bases and adenine bases
- Bthe formation of adenine dimers that interfere with genetic expression
- Cthe breaking of the sugar-phosphate backbone of the DNA molecule
- Dthe formation of thymine dimers that disrupt DNA replication
- Ethe deletion of thymine bases along the DNA molecule
6The Ames test
- Aprovides a way to determine if any type of cell has experienced a mutation
- Bprovides a way to determine if an agent is a mutagen
- Callows researchers to experimentally disrupt gene activity by causing a mutation in a specific gene
- Dprovides a way to repair mutation in bacterial cells
- Edoes all the above
7Xeroderma pigmentosum
- Ais a genetic disorder that results in uncontrolled cell growth
- Bis a genetic disorder in which the NER System is not fully functional
- Cis a genetic disorder that results in the loss of pigment in certain patches of skin
- Dresults from the lack of DNA polymerase proofreading
- EBoth b and d are true of this disorder.
8If a mutation eliminated the function of UvrC, which aspect of nucleotide excision repair would not work?
- ASensing a damaged DNA site
- BEndonuclease cleavage of the damaged strand
- Cremoval of the damaged strand
- Dsynthesis of a new strand, using the undamaged strand as a template
- Enone of the above
9Cancer cells are said to be metastatic when they
- Abegin to divide uncontrollably
- Binvade healthy tissue
- Cmigrate to other parts of the body
- Dcause mutations in other healthy cells
- Edo all of the above
10Oncogenes can be produced by
- Amissense mutations
- Bgene amplification
- Cchromosomal translocation
- Dretroviral insertion
- Eall of the above
Informações
- Descrição
- O usuário eliminou as informações de disciplina Quiz sobre Bio 110 Final: Chapter 14, criado por Usuário eliminado em 13-12-2017.
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- Usuário eliminado
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