HeLa cells are a group of cells that were removed from Henrietta Lacks in 1951. These cells have been growing ever since they were removed. Which research tool best aids in growing a large number of cells outside of a body over a long period of time?

Cell culturing is the technique used to grow cells outside the body in a controlled environment. It allows researchers to maintain and multiply large numbers of cells over time, as with HeLa cells. Microscopes help observe cells, while immunostaining and genetic methods help study or modify them rather than grow them.

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