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The Medicine of 20th Century Variant 1. 1. T F Alexander Fleming extracted more than two pounds of penicillin and used it to fight diseases. 2.T F Penicillin comes from a type of bread mold. 3.T F Penicillin killed bacteria, but in its original form it was toxic to humans. 4..Who established the use of transfusions and blood banks? a. Dr. Richard Drew b. Dr. Christian Barnard c. Dr. William KolffJames Watson and Francis Crick 5.Who performed the first heart transplant? a. Dr. Richard Drew b. Dr. Christian Barnard c. Dr. William Kolff d. James Watson and Francis Crick 6.Who developed an artificial kidney machine? a. Dr. Richard Drew b. Dr. Christian Barnard c. Dr. William Kolff d. James Watson and Francis Crick 7.Who discovered DNA? a. Dr. Richard Drew b. Dr. Christian Barnard c. Dr. William Kolf d. James Watson and Francis Crick
