Wednesday, May 22, 2013
- Health A to Z
- Healthy Living
Advertisement
Point mutation, DNA amplification, and...
Point mutation, DNA amplification, and chromosomal alterations (like translocations) are three examples of mutations that can turn proto-oncogenes into oncogenes. (Illustration by Argosy Publishing.)
Cancer Genetics Images
![An image showing the division of cancer cells (left and right) and two healthy white blood cells (above and below). In normal cells, cell division is balanced by cell death, but cancerous cells continue to divide and accumulate, damaging nearby tissues. [Nibsc/Photo Researchers, Inc. Reproduced by permission.]](http://www.healthline.com/images/gale/thumb/nwaz_01_img0045_thumb.jpg)
![Tobacco use is a major cause of lung, lip, mouth, larynx, and throat cancer, and is a contributing cause of many other cancers. In India, where this photo was taken, the prevalence of tobacco use among students approaches 60 percent in some states. [© AFP/Corbis. Reproduced by permission.]](http://www.healthline.com/images/gale/thumb/nwaz_01_img0046_thumb.jpg)
Advertisement
