DNA replication is the process of producing two identical replicas from one original DNA molecule. This biological process occurs in all living organisms and is the basis for biological inheritance.
Ear Tubes. Recurring ear infections or fluid build-up in the middle ear may require the temporary placement of tubes in the ear. Ear tube surgery involves a very small incision in the eardrum, which is a thin layer of tissue separating the outer and middle ear. The procedure is known as a myringotomy or tympanostomy. A small, plastic tube shaped like a hollow spool (a tympanostomy tube) is then inserted into the eardrum to keep the middle ear drained and ventilated. The tubes remain for 6 months to several years, and eventually fall out or are removed by a doctor.
Should an ear with a tube in place become infected, the tube then functions as a drain, without pain, by allowing pus to drain out. The tube then allows the parent to insert medication directly to the site of the infection using antibiotic/steroid ear drops. The tubes can alleviate hearing loss caused by the accumulation of fluid in the middle ear. Ear tubes are made from various materials and consist of small, cylindrical tubes that are positioned through the ear drum. Some tubes are designed to fall out on their own, and others may require removal by a doctor.