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 Induced mutations Analogous mutations None of these Spontaneous mutations ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair Changes in which of the following characterizes mutations? Genotype Phenotype None of these Both (a) and (b) Genotype Phenotype None of these Both (a) and (b) ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair Which of these mechanisms for thymine dimers repair lead to mutations? Photoreactivation Never leads to mutation SOS repair Excision repair Photoreactivation Never leads to mutation SOS repair Excision repair ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair Due to which of the following DNA repair mechanisms, one is able to distinguish newly synthesized DNA strands from older one? Old strands are methylated while new strands are not New strands are methylated while old strands are not New strands are lower in molecular size New strands do not contain cytosine bases Old strands are methylated while new strands are not New strands are methylated while old strands are not New strands are lower in molecular size New strands do not contain cytosine bases ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair When mutations involve vital functions so that the mutants are nonviable, it is a transversion nonsense mutation lethal mutation none of these transversion nonsense mutation lethal mutation none of these ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair A nonsense mutation may result into modification of mRNA a premature termination of the synthesis of a polypeptide a large deletion within the reading frame of a gene an abnormal elongation of a polypeptide modification of mRNA a premature termination of the synthesis of a polypeptide a large deletion within the reading frame of a gene an abnormal elongation of a polypeptide ANSWER DOWNLOAD EXAMIANS APP
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