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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,

frameshift mutation
missense mutation
all of these
nonsense mutation

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

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

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

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

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

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

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

phosphorylation
photoreactivation
excision repair
photosynthesis

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

Never leads to mutation
Photoreactivation
Excision repair
SOS repair

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