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the FDA approves genetically engineered tissue plasminogen activator to treat heart attacks.

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doctor author kornburg of washinton university makes DNA in a test tube for the first time.

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doctor joseph murray preforms the first kidney implant between twins.

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the complete genetic code of the human chromosome is deciphered.

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the first human artificial chromosome is created.

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the US army collects blood and tissue samples from all new recruits as a part of genetic dog tag program.

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the US FDA approves the first biological protein.

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restriction enzymes are discovered. These enzymes cut DNA into pieces.

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Scientist understand genetic code for the first time.

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scientist proved that sickled cell anemia occurs due to a change in a single amino acid.

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Doctor James Watson and doctor Francis crick revealed the 3D structure of DNA.

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existence of DNA was discovered.

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First vaccination by Edward Jenner, gives a child vile vaccine protect him from small poxs.

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Chinese used the first antibiotic. For treating boils.