Question

in a cell, nucleus is surrounded by ______​

Answer 1

Answer:

The nucleus is surrounded by a system of two concentric membranes, called the inner and outer nuclear membranes. The outer nuclear membrane is continuous with the endoplasmic reticulum, so the space between the inner and outer nuclear membranes is directly connected with the lumen of the endoplasmic reticulum

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Answer 2

$answer$

The nucleus is surrounded by a system of two concentric membranes, called the inner and outer nuclear membranes.