Compaction of the duplicated chromosomes during cell division (mitosis or meiosis) results either in a four-arm structure (pictured to the right) if the centromere is located in the middle of the chromosome or a two-arm structure if the centromere is located near one of the ends.
boycott definition: The definition of a boycott is a decision to not use or buy products or services in order to show support for a cause. (noun) An example of a boycott is not buying paper products made with rainforest wood to protest deforestation....
exclusion - the act of forcing out someone or something; the ejection of troublemakers by the police; the child's expulsion from school. expulsion, riddance, ejection. defenestration - the act of throwing someone or something out of a window.