Mitosis y meiosis
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Transcript of Mitosis y meiosis
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DIPLOIDE HAPLOIDECélula Somática Célula Sexual (Gametos)2n = 46 Cromosomas n = 23 CromosomasPresencia de Cromosomas Homólogos
Ausencia de Cromosomas Homólogos
Producto de la Mitosis Producto de la MeiosisCarga Genética completa Carga Genética a la mitadCarga Genética de ambos progenitores
Carga Genética de un progenitor
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G1• Intensa Actividad Bioquímica.• La célula duplica su tamaño.• Aumenta el número de organelas
citoplasmáticas• Duplicación de centríolos.• Período más variable del Ciclo Celular
(tiempo).
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S (Síntesis)• Duplicación del ADN.• Síntesis de Proteínas necesarias para la
duplicación del ADN.
G2• Condensación de la cromatina (cromosomas).• Centríolos duplicados.• Período más corto del Ciclo Celular.
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FASES1.Profase2.Metafase3.Anafase4.Telofase
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FASES de la MEIOSIS I FASES de la MEIOSIS II
Interfase (G1, S, G2) Interfase (G2)
Profase I Profase II
Metafase I Metafase II
Anafase I Anafase II
Telofase I Telofase II
Citocinesis Citocinesis
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