Meanwhile, if you're heading to a destination or an out-of-town wedding, it's probably OK to spend less on the gift, said Hill. But you should still give something; Hill noted that guests can't simply say that their attendance is gift enough.
Cell culture. Cell culture, the maintenance and growth of the cells of multicellular organisms outside the body in specially designed containers and under precise conditions of temperature, humidity, nutrition, and freedom from contamination.
Explant culture is rarely done. Cell culture is mostly used for identification and cultivation of viruses. 1  Cell culture is the process by which cells are grown under controlled conditions. 2  Cells are grown in vitro on glass or a treated plastic surface in a suitable growth medium. These are normal cells derived from animal or human cells. 2  They are able to grow only for limited time and cannot be maintained in serial culture. 3  They are used for the primary isolation of viruses and production of vaccine.