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Write Short Notes on the Following. Nucleus of a Cell - Science

Write short notes on the following.

Nucleus of a cell

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Solution

Nucleus of a cell: The nucleus is a spherical structure generally present at the centre of a cell. The nucleus is composed of the following components:

1) Nuclear membrane: It is a double-layered membrane which separates the contents of the nucleus from the cytoplasm. The nuclear membrane has nuclear pores that allow the transfer of specific substances in and out of the nucleus.

2) Nucleolus: It is a small spherical body that is not bound by any membrane.

3) Chromosomes: These are thread-like structures that carry genes. Genes contain information necessary for the transfer of characteristics from the parents to the offspring. Thus, chromosomes play an important role in the inheritance of characteristics.

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APPEARS IN

NCERT Class 8 Science Textbook
Chapter 8 Cell - Structure and Functions
Q 3.2 | Page 98
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