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Chromosomes contain genes, which are the units of hereditary information. Genes are sequences of DNA that encode instructions for building and functioning of an organism. By containing genes, chromosomes serve as the site where hereditary information is stored and passed from generation to generation.
One can find information on a composite volcano on a website called Volcanology. One can also find information on a composite volcano on websites such as InfoPlease and The-Science-Site.
X chromosomes are found in the nucleus of a sperm cell, which is located in the head of the cell. During fertilization, the X chromosome from the sperm cell combines with the X chromosome from the egg cell to determine the genetic sex of the offspring.
The original site was called "The Mining Company" when it was launched in 1997, before being rebranded as About.com in 1999.
The site on the surface of an enzyme where a reactant binds is called the active site. This is where the chemical reaction takes place between the enzyme and its substrate. The active site has a specific shape that allows it to bind with the substrate molecule.
The name of a diagram that shows how a site is structured is called the state.