Without a nucleus, multicellular life forms, called eukaryotes, would not exist. According to the Molecular Expressions website from Florida State University, the nucleus acts as the administrative center and information processor for the cell by storing its genetic material and coordinating its activities.Know More
Molecular Expressions explains that simple, one-celled organisms, or prokaryotes, such as bacteria, do not have a nucleus. Instead, their genetic material is dispersed throughout the cell. Eukaryotes, on the other hand, require a greater degree of cellular organization because they perform more complicated functions. These functions include cell reproduction, growth, protein synthesis and intermediary metabolism. A membrane separates the nucleus' contents, which include strings of genetic material called DNA, from the rest of the cell. Each nucleus within a human cell contains nearly 6 feet of DNA arranged into a compact structure known as chromatin. This chromatin organizes to form chromosomes during cell division.
Each nucleus also contains at least one nucleoli, an organelle responsible for synthesizing ribosomes, which produce proteins along with other small cell components. The membrane of the nucleus is full of small holes that allow necessary molecules to pass between the nucleus and the rest of the cell, such as building blocks for DNA and RNA and energy-supplying components, notes Molecular Expressions.Learn more in Cells
Cell transcription occurs in the nucleus of the cell where the DNA is located. Transcription is the process whereby a DNA base sequence is copied to form an RNA molecule. The production of mRNA requires a DNA template.Full Answer >
The nucleus is the part of the cell that contains most of the genetic information found in cells. Genetic information is stored within a DNA molecule, tightly wound into a structure known as a chromosome. A tiny amount of genetic information is found in the mitochondria, outside of the nucleus.Full Answer >
The nucleus is the control center of a cell. The nucleus controls the cell's growth and reproduction and contains the cell's DNA.Full Answer >
Transcription takes place in the cell's nucleus. The process of transcription makes an RNA strand from a DNA template and is the first step toward making a protein, according to the University of New Mexico's Biology Department website.Full Answer >