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DNA Sequencing, Mutation and Repair

DNA Sequencing, Mutation and Repair
Genetic variations are

stable
temporary
influenced by the environment
not heritable

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

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

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

Induced mutations
Analogous mutations
None of these
Spontaneous mutations

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DNA Sequencing, Mutation and Repair
Differentiation of four different bases in automated sequencing systems is that each base has

cytosine at start
distinctive fluorescent tag
unique antibody bound to it
different radioactive tag

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

Never leads to mutation
SOS repair
Excision repair
Photoreactivation

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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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