A City Guide To Zhaozhou for These genes ensure that sex between men and women will occur in all cultures and that the sexual drive will not easily be ignored. Consequently, these genes effectively determine that all societies will develop mores to regulate and ritualize sexual relations and sexuality. Yet the expression of human sexuality is extremely varied. The kind of sexual mores that develop is highly dependent on historical and cultural context. What is invariable, however, is that sexual mores of some sort develop. To take another example, our genes determine that children remain dependent during the first few years of their lives. Human babies and young children are incapable of fending for themselves and reproducing during this rather extended period. A City Guide To Zhaozhou 2016.