Heredity has always been, in one form or another, at the center of biological
research. There is little doubt that the first scientific experimentation took place
about fifteen thousand years ago, when humans started breeding plants and
animals in order to domesticate them. Today the science of genetics seems to
advance at such a pace that even the experts have trouble keeping up with all the
developments. Now we are witnessing the expansion of our understanding of this
realm of science to levels unimaginable just a few decades ago.