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 inhibitor of gene modification an enzyme that repairs mutations a chemical or physical agent that induces mutations a molecule which stabilizes DNA thus prevents mutations from occurring an inhibitor of gene modification an enzyme that repairs mutations 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 When mutations involve vital functions so that the mutants are nonviable, it is a lethal mutation nonsense mutation transversion none of these lethal mutation nonsense mutation transversion none of these ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair Thymine dimers are directly repaired with the help of visible light by process known as excision repair photoreactivation photosynthesis phosphorylation excision repair photoreactivation photosynthesis phosphorylation ANSWER DOWNLOAD EXAMIANS APP
DNA Sequencing, Mutation and Repair Which of the following(s) is/are steps in excision repair mechanisms? Incision Ligation All of these Excision Incision Ligation All of these Excision 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 New strands are lower in molecular size Old strands are methylated while new strands are not New strands are methylated while old strands are not New strands do not contain cytosine bases New strands are lower in molecular size Old strands are methylated while new strands are not New strands are methylated while old strands are not ANSWER DOWNLOAD EXAMIANS APP
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