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DNA Sequencing, Mutation and Repair

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

Phenotype
None of these
Both (a) and (b)
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
photosynthesis
photoreactivation
excision repair

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

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

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

Excision
Ligation
All of these
Incision

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DNA Sequencing, Mutation and Repair
Genetic variations are

influenced by the environment
not heritable
temporary
stable

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DNA Sequencing, Mutation and Repair
Which of the following bacterial genome was sequenced first?

S. pneumoniae
H. influenzae
S. thermophilus
E. coli

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