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sattari [20]
4 years ago
8

This structure is a double-walled membrane which allows materials into and out of the nucleoplasm:

Biology
1 answer:
artcher [175]4 years ago
4 0
The membrane being referred to here is the nuclear envelope.
The nuclear envelope is similar to the plasma membrane of the cell, except that it controls the passage of substances in and out of the nucleus. The movement of substances in and out is carried out through nuclear pores, which are small openings on the membrane.
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