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DNA Sequencing, Mutation and Repair

DNA Sequencing, Mutation and Repair
Genetic variations are

not heritable
influenced by the environment
temporary
stable

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DNA Sequencing, Mutation and Repair
Which of the following bacterial genome was sequenced first?

H. influenzae
S. pneumoniae
E. coli
S. thermophilus

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DNA Sequencing, Mutation and Repair
Which of the following mutation affects only a single nucleotide?

Aerial mutation
Regional mutation
Point mutation
Site mutation

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DNA Sequencing, Mutation and Repair
A nonsense mutation introduced into the DNA sequence of a gene may

cause premature termination of the mRNA
shorten the length of the protein encoded by the gene
cause a shift in reading frame
have no effect on the transcript or protein made

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DNA Sequencing, Mutation and Repair
The mutation which will not affect the length of a protein is,

nonsense mutation
all of these
frameshift mutation
missense mutation

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DNA Sequencing, Mutation and Repair
Frame shift mutation may occur as a result of

conversion of guanine to xanthine
None of these
deamination of cytosine to uracil
formation of a thymine-dimer

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