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Which type of radiation is most effective in forming thymine dimers, leading to microbial death?
Which of the following is an example of acquired antibiotic resistance?
How do intercalating agents induce mutations?
What is the process of sharing genetic information between two unrelated organisms called?
What is the primary source of new alleles within a population?
For a genetic change to have a long-term impact on a species, it needs to be __________.
A microbiology student isolates a bacterium that initially cannot synthesize the vitamin niacin and must obtain it from the growth medium. After exposure to UV light, a mutation occurs, and a colony is identified that grows without niacin supplementation. How would you classify this mutated bacterium?
Why can't auxotrophs be selected for using direct selection?
What happens if a colony grows on the nutrient agar but not on the minimal media?
The Ames test is primarily used to detect:
During DNA replication, which mechanism is primarily responsible for correcting errors that have been missed by the DNA polymerase's proofreading activity?
Which of the following repair mechanisms primarily fixes bulky DNA lesions caused by UV radiation?
Which process ensures the high fidelity of DNA replication by correcting errors that occur during nucleotide incorporation?
Which of the following is NOT mentioned as a mechanism for the transfer of resistance genes between bacteria?