Prokaryotes (bacteria and archaea) typically store their genomes on a single large, circular chromosome. Similarly, some eukaryotic organelles contain a remnant circular chromosome with a small number of genes.:14.4 Prokaryotes sometimes supplement their chromosome with additional small circles of DNA called plasmids, which usually encode only a few genes and are transferable between individuals. For example, the genes for antibiotic resistance are usually encoded on bacterial plasmids and can be passed between individual cells, even those of different species, via horizontal gene transfer. COUNT 5
QSN1 What are prokaryotes? ANS1 bacteria and archaea QSN2 How do prokaryotes store their genomes? ANS2 on a single large, circular chromosome QSN3 What type of chromosome do some eukaryotic organelles contain? ANS3 a remnant circular chromosome with a small number of genes QSN4 Small circles of DNA that encode only a few genes and are transferable between individuals are called what? ANS4 plasmids QSN5 What allows genes for antibiotic resistance to be passed between individual cells? ANS5 horizontal gene transfer