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.
In its simplest form, cell culture involves the dispersal of cells in an artificial environment composed of nutrient solutions, a suitable surface to support the growth of cells, and ideal conditions of temperature, humidity, and gaseous atmosphere.n such a system, a researcher can precisely measure the response of the cellâs alterations in culture, prospective drugs, the presence or absence of other kinds of cells, carcinogenic agents, and viruses. Cell cultures and DNA can be established from blood or small fragments of tissue (biopsies).