Which statement is true about hereditary cancer?

• A. It is caused by environmental factors only
• B. It can be inherited from parents
• C. It is always sporadic
• D. It does not affect gene expression

Answer: (B)

Hereditary cancer refers to cancer that is directly linked to genetic mutations that can be passed from one generation to the next. When a cancer is described as hereditary, it often means that the individual has inherited a specific mutation that significantly increases their risk of developing certain types of cancer. For example, mutations in the BRCA1 and BRCA2 genes are well-known hereditary factors that significantly enhance the risk of breast and ovarian cancer among those who carry them.

In this context, the statement that it can be inherited from parents is accurate because many hereditary cancers are the result of inherited genetic alterations. These alterations can predispose individuals to cancers that they would not have developed solely due to environmental factors or lifestyle choices. Understanding that hereditary cancer comes from familial genetic backgrounds is crucial for assessing risks, providing genetic counseling, and making informed health decisions regarding screening and prevention.

The other statements do not correctly reflect the nature of hereditary cancer, as they either deny the genetic component or mischaracterize the complexity of cancer development. Therefore, recognizing the inheritability of certain cancers is essential for understanding their broader implications for families and health management strategies.