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Date Posted: 15:09:32 02/20/12 Mon
Author: Pahu
Subject: Sexual Reproduction 1


Sexual Reproduction 1


If sexual reproduction in plants, animals, and humans is a result of evolutionary sequences, an unbelievable series of chance events must have occurred at each stage.


A. The amazingly complex, radically different, yet complementary reproductive systems of the male and female must have completely and independently evolved at each stage at about the same time and place. Just a slight incompleteness in only one of the two would make both reproductive systems useless, and the organism would become extinct.


B. The physical, chemical, and emotional systems of the male and female would also need to be compatible (a).


C. The millions of complex products of a male reproductive system (pollen or sperm) must have an affinity for and a mechanical, chemical (b) and electrical (c) compatibility with the eggs of the female reproductive system.


D. The many intricate processes occurring at the molecular level inside the fertilized egg would have to work with fantastic precision—processes scientists can describe only in a general sense (d)


E. The environment of this fertilized egg, from conception through adulthood and until it also reproduced with another sexually capable adult (who also “accidentally” evolved), would have to be tightly controlled.


F. This remarkable string of “accidents” must have been repeated for millions of species.


Either this series of incredible and complementary events happened by random, evolutionary processes, or sexual reproduction was designed by intelligence.


a. In humans and in all mammals, a mother’s immune system, contrary to its normal function, must learn not to attack her unborn baby—half of whom is a ‘foreign body’ from the father. If these immune systems functioned ‘properly,’ mammals—including each of us—would not exist.

”The mysterious lack of rejection of the fetus has puzzled generations of reproductive immunologists and no comprehensive explanation has yet emerged.” [Charles A. Janeway Jr. et al., Immuno Biology (London: Current Biology Limited, 1997), p. 12:24.]


b. N. W. Pixie, “Boring Sperm,” Nature, Vol. 351, 27 June 1991, p. 704.


c. Meredith Gould and Jose Luis Stephano, “Electrical Responses of Eggs to Acrosomal Protein Similar to Those Induced by Sperm,” Science, Vol. 235, 27 March 1987, pp. 1654–1656.


d. For example, how could meiosis evolve?


[From “In the Beginning” by Walt Brown ]

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