LIFE SCIENCE

Detailed explanation-1: -Typically, the nucleus of a cancer cell is larger and darker than that of a normal cell and its size can vary greatly. Another feature of the nucleus of a cancer cell is that after being stained with certain dyes, it looks darker when seen under a microscope.

Detailed explanation-2: -Researchers are able to identify these cells by distinctive proteins on their cell surfaces, and are now racing to identify cancer stem cells in skin, lung, pancreatic, ovarian, prostate, and many other cancers. Figure 2. Tumor cells that survive transplantation and form a new tumor are called cancer stem cells.

Detailed explanation-3: -Cancer disturbs these cellular activities that maintain multicellular organisms, namely, growth, differentiation, apoptosis, and tissue integrity. Multiple alterations in the genome of cancer cells underlie tumor development.