Genetics and Molecular Biology

Cancer begins in your cells. Normally, our body forms new cells as we'd like them, replacing old cells that die. the expansion of additional cells can form a mass called a tumor. Tumors are often benign or malignant. Benign tumours aren't cancer while malignant ones are. Cells fro malignant tumours can invade nearby tissues. They will also break free and spread to other parts of the body.

Stem cells are undifferentiated biological cells which will differentiate into specialized cells and may divide to supply more stem cells. They’re found in multicellular organisms. In mammals, there are two broad sorts of stem cells: embryonic stem cells, which are isolated from the inner cell mass of blastocysts, and adult stem cells, which are found in various tissues.