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

The purpose of growing cancer cells in a laboratory is to examine medicinal treatments before giving them to patients. Cancer cells are cells that generate and split at a speedy and loose speed. Even though cancer cells are frequently generated in the body, the illness known as cancer only happens when immune cells (chiefly natural killer cells) is unsuccessful to identify and/or terminate them.

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)