ABSTRACT
Biology and its many sub fields of research have seen a recent boon with the emergence of molecular biology. Much of the gigantic progress of biochemistry and physiology over the past three decades can be ascribed to this new field, and in particular to genetic engineering. We cannot watch life’s processes under a microscope—the molecular realm is out of reach of all our most sophisticated instruments—but the ability to transfer DNA code for proteins and their RNA master molecules from one organism to another has allowed scientists to peer into and manipulate cellular processes at the molecular level.
