Find the missing text [**R****]
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The first user who solved this task is Djordje Timotijevic.
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William Clouser BoydBorn 4 Mar 1903; died 19 Feb 1983 at age 79.American immunochemist, who with his wife Lyle, during the 1930's, made a worldwide survey of the distribution of blood types. He discovered that blood groups are inherited and not influenced by environment. By genetic analysis of the blood groups that human races are populations that differ in the difference of their alleles. On this basis, he divided the world population into 13 geographically distinct races with different blood group gene profiles. Later, Boyd discovered lectins, which are antibody-like proteins, in plants. He also studied the blood groups of mummies. |