Most genes depend to some degree upon their environment for their expression. It is possible that the child who had to be placed for adoption may have been born of parents who had serious social problems. This is undoubtedly because of lacks within their environment and not the result of inheritable weaknesses. Few of us can trace our parentage back more than a few generations. And those who can will surely know that included among all of our ancestors are people who have been capable of and have performed some of the most noble and some of the most lowly of acts.
Every parent is faced with the same task.