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....
Definition of recall. 1  1 : a call to return a recall of workers after a layoff. 2  2 : the right or procedure by which an official may be removed by vote of the people. 3  3 : remembrance of what has been learned or experienced.  4 : the act of 1  revoking. 5 : a public call by a manufacturer for the return of a product that may be defective or contaminated.