Chapter 16, Problem 3ITD

Summary Introduction

To review:

Whether BRCA1or BRCA2 mutation is more dangerous in breast cancer cases based on the given study.

Introduction:

Cancer is a disease in which there is an abnormal growth of cells due to unlimited cell division. It is a genetic disease which is characterized by the changes in the genes due to certain mutations. The abnormal cells are called tumor or cancer cells. Tumor suppressor genes inhibit the growth and cell division of the abnormal cells. When inactivated by mutations, these genes lose their inhibitory properties causing an increase in the cell division leading to cancer.