The Physical Testifies to the Metaphysical
English book, p. 107
By Maulana Wahiduddin Khan
UNIVERSAL EVIDENCE OF GOD AND THE HEREAFTER 4. How are genes switched on and off? Sir John Kendrew is the chairman of the European Allender Biology Organisation, Heidelberg. “We know something about how genes are switched on and off in bacteria, but next to nothing about how it is done in higher animals? [It is by switching genes on and off that the cells of a single organism, which all contain the same set of genes, can do such different jobs and become constituents of nerves, skin, etc.] 5. Why do we have an immune system? The body’s immune system defends us against infection, is responsible for allergies, and makes organ transplants difficult. But according to Dr. H. S. Micklem of the University of Edinburgh, “The most interesting question is not how the immune system works, but why it is there at all: Invertebrates seem to get along quite well without one, but it is incredibly complicated in vertebrates. The idea that it was needed to detect small changes in the cell surface which might lead to cancer has been popular in the last ten years, but there is much data to suggest it is not good enough.” 6. How can we measure evolution? John Maynard Smith, Professor of Biology at the University of Sussex, thinks that the theory of evolution has a builtin problem. “The essential components of the theory of evolution are mutation (a change in a gene), selection (differential survival or fertility of different types) and migration. The theory tells us that each of these processes, at a level far too low to be measurable in most situations, can profoundly affect evolution. Thus, we have three processes that we believe determine the course of evolution, and we have a mathematical theory that tells us that

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