cos


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COS

Abbreviation for Chief of Staff.

cos

site the region formed when the COHESIVE ENDS of certain BACTERIOPHAGES, notably bacteriophage lambda, join together. A cos site is formed when the linear CHROMOSOME of bacteriophage lambda circularizes following infection of a host cell. Concatemeric (see CONCATEMER lambda DNA is cut at cos sites when the DNA is packaged during phage assembly in the LYTIC CYCLE.
References in periodicals archive ?
First consider the average of the quantity (3 cos[sup.2] [Beta-1] that appears in Eq.(46): We use the fact that cos [Beta] is the third component of z[acute sign over it], so the average is:
The company was acquired by CNA Insurance Cos. on Sept.
United Western Supply Cos Western Foundry Sand Div 5245 E.