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  • Básicas. 5. Los cromosomas
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      Básicas. 5. Los cromosomas
      4. La célula, unidad de vida
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      Básicas. 5. Los cromosomas 1

      Completa el siguiente texto:

       

      «Los óvulos y los espermatozoides humanos solo tienen  cromosomas (un ejemplar de cada tipo). A este tipo de células se las denomina células . Al unirse un óvulo y un espermatozoide () se vuelve a generar una célula con  cromosomas (dos ejemplares de cada tipo). A este tipo de células se las denomina células . Esta célula, también denominada , es la primera célula del nuevo ser. De ella surgen todas las demás. Ella contiene toda la  de cómo será el niño, el adolescente y el adulto».

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      Básicas. 5. Los cromosomas
      4. La célula, unidad de vida
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      Básicas. 5. Los cromosomas 2

      En la siguiente imagen se observa un idiograma humano.

       


      a) Indica si corresponde a un hombre o a una mujer. Justifica tu respuesta.
      b) Observa los siete grupos de cromosomas y deduce qué características los diferencian.

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