Averages for Chicago in April. The weather in April in Chicago is gearing up for the warmer summer weather, but is still wildly unpredicatable. The only dependable fact when it comes to the weather in Spring in Chicago is its changeable nature. The average daily temperature for Chicago in April is a relatively warm 15 C, but this can still drop to 4Â°C on average. The important thing to remember though, is that it is out of the freezing temperatures on average, and thus past the bleak winter weather... Read more.
Cancer is a genetic disease. Cancer is a genetic disease, and this should not be confused with the statement that cancer is a hereditary disease. The two statements are profoundly different. A hereditary disease is one that is passed from the parents to a child through the inheritance of a defective gene.
Genetic risk factors. About 5% to 10% of breast cancer cases are thought to be hereditary, meaning that they result directly from gene defects (called mutations) inherited from a parent. BRCA1 and BRCA2: The most common cause of hereditary breast cancer is an inherited mutation in the BRCA1 and BRCA2 genes. People with this syndrome have an increased risk of breast cancer, as well as several other cancers such as leukemia, brain tumors, and sarcomas (cancers of bones or connective tissue). 2  This is a rare cause of breast cancer. 3  CHEK2: The Li-Fraumeni syndrome can also be caused by inherited mutations in the CHEK2 gene.