The result of a calibration may be recorded in a document, sometimes called a calibration certificate or a calibration report. See CLAS Requirements Document 6 Requirements for Calibration Certificates issued by CLAS Laboratories.
DNA and histone proteins are packaged into structures called chromosomes. In the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes.Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.Chromosomes are not visible in the cellâs nucleusânot even under a microscopeâwhen the cell is not dividing.However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope.n the nucleus of each cell, the DNA molecule is packaged into thread-like structures called chromosomes. Each chromosome is made up of DNA tightly coiled many times around proteins called histones that support its structure.
Transcript: The structure of DNA, that Watson and Crick discovered, suggests how genetic information is passed on. Before a cell divides, the double helix unwinds and the two strands of the DNA molecule in the nucleus separate.Each strand is then used as a template for the construction of new DNA molecules. The replication of DNA is simple in theory, but much more complicated in reality.ranscript: The structure of DNA, that Watson and Crick discovered, suggests how genetic information is passed on. Before a cell divides, the double helix unwinds and the two strands of the DNA molecule in the nucleus separate.