DNA Sequencing, Mutation and Repair A mutagen is defined as a chemical or physical agent that induces mutations an enzyme that repairs mutations a molecule which stabilizes DNA thus prevents mutations from occurring an inhibitor of gene modification a chemical or physical agent that induces mutations an enzyme that repairs mutations a molecule which stabilizes DNA thus prevents mutations from occurring an inhibitor of gene modification ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair Which of the following mutation affects only a single nucleotide? Point mutation Aerial mutation Regional mutation Site mutation Point mutation Aerial mutation Regional mutation Site mutation ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair When mutations involve vital functions so that the mutants are nonviable, it is a none of these nonsense mutation transversion lethal mutation none of these nonsense mutation transversion lethal mutation ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair Which of the following(s) is/are steps in excision repair mechanisms? Ligation Incision Excision All of these Ligation Incision Excision 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 do not contain cytosine bases Old strands are methylated while new strands are not New strands are lower in molecular size New strands are methylated while old strands are not New strands do not contain cytosine bases Old strands are methylated while new strands are not New strands are lower in molecular size New strands are methylated while old strands are not ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair Which of the following mutations arise without exposure to external agents? Analogous mutations Spontaneous mutations None of these Induced mutations Analogous mutations Spontaneous mutations None of these Induced mutations ANSWER DOWNLOAD EXAMIANS APP
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