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DNA Sequencing, Mutation and Repair

DNA Sequencing, Mutation and Repair
Genetic variations are

temporary
not heritable
stable
influenced by the environment

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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
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
Changes in which of the following characterizes mutations?

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

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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
photosynthesis
excision repair

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

Induced mutations
Spontaneous mutations
None of these
Analogous mutations

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