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DNA Sequencing, Mutation and Repair

DNA Sequencing, Mutation and Repair
Thymine dimers are directly repaired with the help of visible light by process known as

photosynthesis
photoreactivation
phosphorylation
excision repair

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DNA Sequencing, Mutation and Repair
Which of the following mutations arise without exposure to external agents?

None of these
Induced mutations
Analogous mutations
Spontaneous mutations

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

Ligation
Excision
Incision
All of these

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

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

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

nonsense mutation
missense mutation
frameshift mutation
all of these

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

Point mutation
Site mutation
Aerial mutation
Regional mutation

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