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DNA Sequencing, Mutation and Repair

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

SOS repair
Excision repair
Never leads to mutation
Photoreactivation

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DNA Sequencing, Mutation and Repair
Genetic variations are

not heritable
temporary
influenced by the environment
stable

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

modification of mRNA
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

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

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

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

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

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

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

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