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.
The fly lays eggs, which turn into maggots. Maggot is another word for larva. After a pupal stage, maggots turn into flies. Sometimes, it may seem like the maggots appear from nowhere, but it's just that you didn't notice the fly or its eggs. The fly lays hundreds of eggs at a time!