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.
Helicase, made of six proteins arranged in a ring shape, unwinds the DNA double helix into two individual strands. Single-strand binding proteins, or SSBs, are tetramers that coat the single-stranded DNA.This prevents the DNA strands from reannealing to form double-stranded DNA.Primase is an RNA polymerase that synthesizes the short RNA primers needed to start the strand replication process. DNA polymerase is a hand-shaped enzyme that strings nucleotides together to form a DNA strand.his prevents the DNA strands from reannealing to form double-stranded DNA. Primase is an RNA polymerase that synthesizes the short RNA primers needed to start the strand replication process. DNA polymerase is a hand-shaped enzyme that strings nucleotides together to form a DNA strand.