DNA Sequencing, Mutation and Repair Which of the following mutations arise without exposure to external agents? None of these Spontaneous mutations Analogous mutations Induced mutations None of these Spontaneous mutations Analogous mutations Induced mutations ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair A nonsense mutation introduced into the DNA sequence of a gene may cause premature termination of the mRNA cause a shift in reading frame have no effect on the transcript or protein made shorten the length of the protein encoded by the gene cause premature termination of the mRNA cause a shift in reading frame have no effect on the transcript or protein made shorten the length of the protein encoded by the gene ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair Which of these mechanisms for thymine dimers repair lead to mutations? Excision repair SOS repair Never leads to mutation Photoreactivation Excision repair SOS repair Never leads to mutation Photoreactivation ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair The mutation which will not affect the length of a protein is, nonsense mutation missense mutation frameshift mutation all of these nonsense mutation missense mutation frameshift mutation all of these 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? 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 Old strands are methylated while new strands are not New strands are methylated while old strands are not ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair A mutagen is defined as a chemical or physical agent that induces mutations a molecule which stabilizes DNA thus prevents mutations from occurring an enzyme that repairs mutations an inhibitor of gene modification a chemical or physical agent that induces mutations a molecule which stabilizes DNA thus prevents mutations from occurring an enzyme that repairs mutations an inhibitor of gene modification ANSWER DOWNLOAD EXAMIANS APP
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