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DNA Sequencing, Mutation and Repair

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

missense mutation
frameshift mutation
nonsense mutation
all of these

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

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

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DNA Sequencing, Mutation and Repair
Which of the following(s) is/are steps in excision repair mechanisms?

Incision
Excision
All of these
Ligation

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DNA Sequencing, Mutation and Repair
What was the first eukaryotic chromosome to be sequenced?

Arabidopsis chromosome IV
Yeast chromosome XI
Yeast chromosome III
None of these

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

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

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DNA Sequencing, Mutation and Repair
When mutations involve vital functions so that the mutants are nonviable, it is a

none of these
nonsense mutation
transversion
lethal mutation

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