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The initial stage of packaging have the binding of the chromosomal DNA to histones. Whole, in chromosomes the ratio of the DNA to histones on a weight basis is around 1:1. There are five main types of histones called as H1, H2A, H2B, H3 and H4. Histones are very basic proteins; about 25 percent of their amino acids are lysine or arginine so histones have a vast number of positively charged amino acid side-chains. These positively charged groups therefore bind to the negatively charged phosphate groups of DNA. Not surprisingly giving their importance in packaging DNA the amino acid series of histones have been highly conserved in evolutio.
These are areas where woody shrubs predominate rather then trees. In regions with a Mediterranean type of climate i .e., hot dry summers and cool wet winters, shrubs grow close tog
There are several methods by which a disease-causing organism can be transferred from the reservoir to the host organism. Direct contact : Disease - causing organism may be tr
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Explain about Thermal Destruction of Enzymes during Sterilization? Before we move on to canning, we need to emphasize here that like thermal destruction of microorganisms, ther
What''s the classification of simple protein?
Explain the Crestal Bone Levels Crestal Bone Levels: Bone levels should be assessed on the mesial and distal surfaces of implants. Any changes between visits should be documen
Maxillary sinus : It is a pyramidal shaped large cavity in the body of the maxilla containing many structures of concern during surgery. The sinus is lined by a membrane known
Q. How are inhalation and expiration carried out? The diaphragm exclusive of mammals and the intercostals muscles can contract or relax varying the volume of the thorax the com
Describe the term - Near-far problem Signals closer to the receiver are received with less attenuation than signals farther away. Given the lack of complete orthogonality, the
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