The discovery that DNA is the genetic material. This discovery caused by bacteria, the bacteria in the experimental sciences (Bacteriologist) named Fred Griffith, scientific study. The bacteria that cause pneumonia in rats found that the bacteria Pneumococci by name, can switch from a condition that does not cause disease as a disease-causing species and later Oswald Avery and his colleagues and found that bacteria that cause substances become type that this disease is DNA there.Quite apart from that, and then in the year Alfred Hershey and Martha Chase c has made the trials to show that DNA is the genetic material of the virus that destroys bacteria, Bacteriophage, called the discovery of the cause this time is generally accepted that DNA is the genetic material of living organisms of all kinds, except some viruses, RNA is the Genera which contain genetic material.
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