3 división celular7
DESCRIPTION
geneticaTRANSCRIPT
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Ciclo de vida celular:Célula animal
División Celular: Mitosis y Meiosis
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http://youtu.be/aDAw2Zg4IgE
http://youtu.be/DD3IQknCEdc
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Cromosoma
Ciclo de vida Celular:
Célula animal
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Cromosoma
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Cromosoma
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Ciclo de vida
Ciclo de vida Celular:
Célula animal
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Eventos importantes para que un organismo crezca: Aumento de la masa celular. Duplicación del material genético. Proceso de división celular.
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Interfase
Ciclo de vida Celular:
Célula animal
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Cic
lo d
e v
ida
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Interfase
Fases G1.- se sintetizan proteínas Fase S.- se duplica el ADN (síntesis de ADN) G2.- preparación para la división celular
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G1 Crecimiento y desarrollo de masa. Luego de la división.
Actividad metabólica. Antes de la síntesis.
Preparación.
Tiempo: Célula de mamífero con ciclo de 24 hrs. 10hrs. Aprx.
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Fase S Duplicación del material genético.
Cromatina de cada cromátida crea a su gemela. Tiempo: Célula de mamífero con ciclo de 24
hrs. 9hrs. Aprx.
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G2 Preparación celular para la división. Tiempo: Célula de mamífero con ciclo de 24
hrs. 4hrs. Aprx.
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Cic
lo d
e v
ida
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División Celular: Estructuras
Ciclo de vida Celular:
Célula animal
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Algunas estructuras importantes: Centrosoma
Centriolos (un par) Áster
Huso mitótico Microtúbulos
Centrómero Cinetocóro
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Nombres importantes en la división celular Profase Metafase
Plato ecuatorial Anafase Telofase Citocinesis
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División Celular: Mitosis y Meiosis
Ciclo de vida Celular:
Célula animal
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División celular
División mitótica División meiótica
Mitosis En células somáticas Un ciclo de división 1 célula 2 células 2n 2n por célula
Meiosis En células sexuales
Espermatozoides Óvulos
Dos ciclos de división. 1 célula 4 células 2n n por cada célula
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Mitosis
División Celular
Ciclo de vida Celular:
Célula animal
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Meiosis
División Celular
Ciclo de vida Celular:
Célula animal
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Meiosis-Parte I
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Meiosis-Parte I
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Meiosis-Parte II
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Meiosis-Parte II
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Meiosis I
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Meiosis:Espermatogénesis y Ovogénesis
División Celular
Ciclo de vida Celular:
Célula animal
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Resumen
División Celular
Ciclo de vida Celular:
Célula animal
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