Question

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?
1. microscopes
2. cell culturing
3. immunostaining
4. genetic methods

Answer 1

Answe well be 2 because I take the quiz