This is a marvelous, but complex description, of how B-cells manufacture antibodies, and how germ cells (sperm or egg) are created. The author has made every attempt to make it sound simple. It isn't. It is a beautiful example of natural nanotechnology.-http://www.uncommondescent.com/intelligent-design/comments-on-kathryn-applegate%e2%80%99s-may-posts-on-biologos/#more-15176-Don't be frightened that it comes from uncommon descent. The author, Caroline Crocker, has no polemics in her essay. In fact she disagrees with another author, who is trying to use this information to interpret God.