How popular is Shula? Shula is a rare first name for females but a somewhat popular surname for all people (#88825 out of 150436, Top 59%). (2000 U.S. DEMOGRAPHICS)
How chronic stress is harming our DNA. Elissa Epel is studying how personality, stress processes and environment affect our DNA â and how we might lessen damaging effects. Money problems, a heavy work load, caregiving â such increasingly common pressures have helped make stress a part of modern American life.
The primary mechanism of significant change in DNA is mutation. That DNA is subject to mutation is a fact and it has been directly observed. In addition, many of the mechanisms of mutation are understood including mutations that can lead to drastic changes in an organism.This means we understand some of the mechanisms by which changes in an organism can be affected.hese facts, that 1) DNA determines the nature of an organism and that 2) there are mechanisms through which DNA can be modified, are the basis of evolution. It is through these facts that evolution happens.