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DNA Sequencing, Mutation and Repair

DNA Sequencing, Mutation and Repair
Genetic variations are

stable
temporary
not heritable
influenced by the environment

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

missense mutation
all of these
nonsense mutation
frameshift mutation

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DNA Sequencing, Mutation and Repair
Which of these mechanisms for thymine dimers repair lead to mutations?

Photoreactivation
Excision repair
Never leads to mutation
SOS repair

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DNA Sequencing, Mutation and Repair
Changes in which of the following characterizes mutations?

Both (a) and (b)
Phenotype
Genotype
None of these

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

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

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

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

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