SIMON FRASER / MRC UNIT, NEWCASTLE GENERAL HOSPITAL / SCIENCE PHOTO LIBRARY SIMON FRASER / MRC UNIT, NEWCASTLE GENERAL HOSPITAL / SCIENCE PHOTO LIBRARY
Cell cultures. Gloved hand holding a pipette over multi-well sample trays containing cell cultures. There is a petri dish at top left corner. The gloves are worn to prevent any unwanted substances from the hands contaminating the samples. Cell cultures are used in the laboratory to study cell growth, and to test the effects of substances on the cells, such as drugs.
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