experimentos adn
TRANSCRIPT
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EXPERIMENTOS conADN
Jorge SuarezFabián GuerreroDaniela AcuñaLuis Ruales
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Historia
• 1869 – Miescher: Aísla la molécula de ADN (Nucleina).
• 1950 – Chargaff: “Reglas de Chargaff”
• 1952 - Rosalind Franklin: Difracción de rayos X del ADN
• 1957 - James Watson y Francis Crick: Modelo de doble cadena, helicoidal, complementario y antiparalelo.
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Friedrich Miescher
• Leucocitos y espermatozoides de salmón.
Nucleína
Extrajo
C, H, O y N
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Alfred Hershey y Martha Chase
• Estudiaron la genética de macrófagos.• El virus utiliza a la bacteria para reproducirse• Átomos radiactivos de fósforo 32P y azufre 35S
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Rosalind Franklin
• Técnica de difracción de rayos X.
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James Watson y Francis Crick:
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