Question

Select the true statement about cancer.

• A. Cancer cells are formed when the normal cells divide uncontrollably.
• B. Cancer can affect only one organ/part.
• C. Genes have no role in controlling the formation of cancerous cells.
• D. Environmental condition is not a factor causing cancer.

Answer 1

The correct option is A

Cancer cells are formed when the normal cells divide uncontrollably.

In cancer, there is an uncontrolled cell division of normal cells, creating a lump/tumour of cancerous cells. These cancer cells have the tendency to spread to the other parts of the body. The cell division is generally controlled by the genes. When changes occur in these genes, cells divide in an uncontrolled manner.