Ridley introduces the search for the intelligence gene. He comes to the conclusion that intelligence genes do not work in a vacuum. Studies done on separated twins have shown that there is, in fact, heritability to intelligence and personality, and that there was zero correlation between IQ scores of adopted children living in the same family. Ridley also introduces the concept that the intelligence genes are indeed more expressive later in life rather than less expressive because people begin to choose their own environments and comfort zones, giving more liberty to the genes to express themselves. This is proven by the fact that elementary school children in Head Start programs are no longer ahead of their peers by the end of elementary school.
Citation:
Ridley, Matt. Genome: The Autobiography of a Species in 23 Chapters. New York: HarperCollins, 1999. Print.
Citation:
Ridley, Matt. Genome: The Autobiography of a Species in 23 Chapters. New York: HarperCollins, 1999. Print.
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