Tag Archives: natural selection

Journal Club: A new take on why tumors develop drug resistance

Posted on June 26, 2015 by Charles Choi

Cancer’s notorious resistance to therapy is often explained as the result of natural selection of newly mutating cells. Cancer-killing drugs wipe out nearly all of a tumor’s cells, but random mutations may allow for drug resistance in some cells, and … Continue reading →

Journal Club: Newly found mutation contributes to irregular chromosome number, a major cause of pregnancy loss

Posted on May 7, 2015 by Charles Choi

When a baby does not make it to term, an irregular number of chromosomes in the embryo is often the root cause. The phenomenon, known as aneuploidy, is surprisingly common: it can be detected in roughly three-quarters of human embryos … Continue reading →