what is nucleus??????
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the central and most important part of an object, movement, or group, forming the basis for its activity and growth.
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Nucleus;
Nucleus is apart of a any cells. Every cell has a nucleus . It perform almost every function of cells which is going on. It has various materials which is present inside the cells like DNA , RNA Chromosomes, chromatin fibre, e.t.c.
It is surrounded by a covering which is called nuclear membrane . Nucleus has fluid like structure which is called cytoplasm.
In many organisms these nucleus is not well- defined which are called prokaryotic cells. Those which have well-defined nucleus which is called eukaryotic cells.
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