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DNA Sequencing, Mutation and Repair

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

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

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DNA Sequencing, Mutation and Repair
A nonsense mutation may result into

an abnormal elongation of a polypeptide
a large deletion within the reading frame of a gene
a premature termination of the synthesis of a polypeptide
modification of mRNA

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

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

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

Site mutation
Regional mutation
Point mutation
Aerial mutation

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

excision repair
phosphorylation
photoreactivation
photosynthesis

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

All of these
Ligation
Incision
Excision

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