Question

describe the structure of nucles

Answer 1

word "nucleus" stems from Latin and means "kernel." The nucleus is an important organelle because it coordinates the cell’s genes and regulates gene expression. It is arranged as lengthy linear DNA molecules in conjunction with various proteins to make chromosomes. The inside of the nucleus contains numerous subnuclear bodies made from proteins, molecules and chromosomes. The nucleus acts as the brain of a cell, but it is not always found at the center. It is a dark mass found in the liquid that fills the cell, which is known as cytoplasm. The nucleus is surrounded by a nuclear envelope, or nuclear membrane, which contains the nucleus, cytoplasm and chromosomes. It includes a double membrane with four phospholipid layers and large pores that materials can pass through. The transport of large molecules like proteins and RNA through the pores is necessary for the maintenance of the chromosomes. The chromosomes contain DNA, which contain the cell’s hereditary information.

Answer 2

The Nucleolus:

Contained within the nucleus is a dense structure composed of RNA and proteins called the nucleolus. The nucleolus contains nucleolar organizers, which are parts of chromosomes with the genes for ribosome synthesis on them. The nucleolus helps to synthesize ribosomes by transcribing and assembling ribosomal RNA. A ribosome is composed of ribosomal RNA and proteins.