Beta-lactam Antibiotics - One of several families of antibiotics, including penicillins, cephalosporins, carbapenems, and monobactams, containing a molecular ring-shaped structure made up of three carbon atoms and one nitrogen atom.⏎
Bacilli - A taxonomic class of bacteria.⏎
Adaptive Mutation - A mechanism through which certain cells can increase the rate in which genetic mutations occur, often in response to stress. This mechanism may help explain how bacteria develop resistance to certain antibiotics.⏎
Bacteria - A large group of unicellular microorganisms that lack a cell nucleus. Some bacteria are pathogenic and harmful to humans, some have no effect at all on humans, and some are beneficial.⏎
Chromosome - An organized structure of DNA and proteins within the nucleus of a cell that contains many genes.⏎