ABSTRACT
For the benefit of readers unfamiliar with the elements of heredity and glandular physiology, a few preliminary explanations need to be made. Although the bodily contours, temperament and sexual desires of men and women are often contrary or overlapping, the vast majority are unambiguously distinct in their genitals. This clear-cut difference is hereditarily determined through the chromosomes. These microscopic constituents of the reproductive cells carry the genes which are made up from complex protein molecules of DNA, the famous messenger of heredity. The genes provide the template for growth from a single cell to a complete human being, and transmit everything that is physically passed on from one generation to the next.
