Question

tissue cultures (samples of cancer cells) are taken from cancer patients, and the cells are then grown in a laboratory. what is the purpose of growing cancer cells in a laboratory? to test medicinal treatments before giving them to patients to replace cancer cells with healthy cells to provide evidence of cancer cells in the patient to stop the cancer from growing in the patient

Explanation:

Growing cancer cells in a lab allows researchers to test new drugs and treatments in a controlled environment before administering them to patients. This helps in determining the efficacy and potential side - effects of the treatments.

Answer:

to test medicinal treatments before giving them to patients