Describe structure and function of nucleus with the help of diagram.
Answers
Answer: The main function of the cell nucleus is to control gene expression and mediate the replication of DNA during the cell cycle.
The structure of a nucleus encompasses the nuclear membrane, nucleoplasm, chromosomes, and nucleolus.
Explanation:
Nuclear Membrane:
The nuclear membrane is a double-layered structure that encloses the contents of the nucleus. The outer layer of the membrane is connected to the endoplasmic reticulum.
Nucleoplasm:
Nucleoplasm is the gelatinous substance within the nuclear envelope.
Nucleolus:
Contained within the nucleus is a dense, membrane-less structure composed of RNA and proteins called the nucleolus.
Chromosomes:
Chromosomes consist of DNA, which contains heredity information and instructions for cell growth, development, and reproduction.