The nuclear envelope

The nuclear envelope - Within the nucleus are two or more...

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The  nuclear envelope,  an outer membrane, surrounds the nucleus of  a eukaryotic cell.  The nuclear envelope is a double membrane, consisting of two lipid  layers (similar to the plasma membrane).  Pores in the nuclear envelope allow the internal nuclear environment  to communicate with the cell cytoplasm.
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Unformatted text preview: Within the nucleus are two or more dense organelles referred to as nucleoli (the singular form is nucleolus ). In nucleoli, submicroscopic particles known as ribosomes are assembled before their passage out of the nucleus into the cytoplasm....
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