Plasmid - A ring of DNA usually found in bacteria that is separate from and can replicate independently from DNA in a chromosome and can provide bacteria with some advantages, such as antibiotic resistance.⏎
Pandemic - An increase in the occurrence of a particular disease over a very large region, such as a continent or the entire globe, that is greater than what is expected over a given period of time.⏎
Nanometer - A unit of length equal to one one-billionth (1 x 10-9) of a meter.⏎
Replication - The process of producing a copy of a strand of DNA.⏎
Reproduction - The process by which parent organisms create new offspring by either sexual or asexual means.⏎