Written By: Plasmid, in microbiology, an extrachromosomal genetic element that occurs in many bacterial strains. Plasmids are circular deoxyribonucleic acid (DNA) molecules that replicate independently of the bacterial chromosome. They are not essential for the bacterium but may confer a selective advantage.
A gnat /ËnÃ¦t/ is any of many species of tiny flying insects in the Dipterid suborder Nematocera, especially those in the families Mycetophilidae, Anisopodidae and Sciaridae. They can be both biting and non-biting. Most often they fly in large flocks resembling clouds.
A quail is a ground bird who seldom flies. It prefers to run in ground cover and nests in that same ground cover. It is a smallish bird, generally weighing less than two pounds. 1. a small, migratory, gallinaceous game bird, Coturnix coturnix, of the Old World. 2. any of several other birds of the genus Coturnix and allied genera. 3. any of various New World gallinaceous game birds of the genus Colinus and allied genera, esp. the bobwhite. A quail is a ground bird who seldom flies. It prefers to run in ground cover and nests in that same ground cover. It is a smallish bird, generally weighing less than two pounds. 1. a small, migratory, gallinaceous game bird, <i>Coturnix coturnix,</i> of the Old World. 2. any of several other birds of the genus <i>Coturnix</i> and allied genera.