Chapter 9 - Disease
Ridley introduces this chapter by mentioning the different blood types like A, B, AB, and O. He explains how A and B can provide blood for AB, but AB cannot provide blood for A or B. He also mentions that O is a universal donor for any blood type. A and B type of bloods have difference in their genes, where the letters are ordered differently. Ridley explains how the people who have AB blood type are more healthy and to be AB, they have to be offspring of A and B bloody type. So it is suggested for an AA to mate with a BB to have AB healthy children. Ridley talks about a experiment with wearing and smelling a t-shirt with no perfume or deodorant for 2 days, and ranking them by the attractiveness of the smell. There will always be change, and nothing stays the same.
Citation:
Ridley, Matt. Genome: The Autobiography of a Species in 23 Chapters. New York: HarperCollins, 1999. Print.
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