I would like to offer some evidence to show that men and women are biologically unique. The women's movement, in its assault on traditional sex roles, has repeatedly asserted that males and females are identical except for the ability to bear children. Nothing could be farther from the truth.
Let's begin by discussing the human brain, where maleness and femaleness are rooted. Careful research is revealing that the basic differences between the sexes are neurological in origin, rather than being purely cultural as ordinarily presumed. As Dr. Richard Restak stated in his book, The Brain, The Last Frontier:
Certainly, anyone who has spent time with children in a playground or school setting is aware of the differences in the way boys and girls respond to similar situations. Think of the last time you supervised a birthday party attended by five-year-olds. It's not usually the girls who pull hair, throw punches, or smear each other with food. Usually such differences are explained on a cultural basis. Boys are expected to be more aggressive and play rough games, while girls are presumably encouraged to be more gentle, nonassertive, and passive. After several years of exposure to such expectations, so the theory goes, men and women wind up with widely varying behavioral and intellectual repertoires. As a corollary to this, many people believe that if the child-rearing practices could be equalized and sexual-role stereotypes eliminated, most of these differences would eventually disappear. As often happens, however, the true state of affairs is not that simple.
Recent psychological research indicates that many of the differences in brain function between the sexes are innate, biologically determined, and relatively resistant to change through the influences of culture.
Dr. Restak presents numerous studies that document this statement, and then concludes this chapter by quoting Dr. David Wechsler, creator of the most popular intelligence test for use with adults.
"...our findings do confirm what poets and novelists have often asserted, and the average layman long believed, namely, that men not only behave but 'think' differently from women." (p. 206)
Both Drs. Restak and Wechsler are right. Males and females differ anatomically, sexually, emotionally, psychologically, and biochemically. We differ in literally every cell of our bodies, for each sex carries a unique chromosomal pattern. Much is written today about so-called sex-change operations, whereby males are transformed into females or vice versa. Admittedly, it is possible to alter the external genitalia by surgery, and silicone can be used to pad the breasts or round out a bony frame. Hormones can then be injected to feminize or masculinize the convert. But nothing can be done to change the assignment of sex made by God at the instant of conception. That determination is carried in each cell, and will read "male" or female" from the earliest moment of life to the point of death. The Bible says emphatically, "Male and female created he them" (Gen. 1:27, KJV, emphasis added). Not one sex, but two!
From Dr. Dobson’s book Straight Talk to Men.