I think thats called a botany
Bacteria and Archea. They are single celled
The answer your looking for is 20 Amino Acids.<span>
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Attachment of acetyl groups to histone promotes transcription.
This mechanism is known as histone acetylation and it is a part of gene expression. The lysine residues inside the N-terminal tail from the histone core of the nucleosome are the substrate for enzymes-histone acetyltransferase which transfer an acetyl functional group from another molecule. Acetylation removes the positive charge on the histones and thus decrease the interaction negatively charged phosphate groups of DNA. As a result, chromatin becomes more relaxed structure and transcription is promoted.
High Tides because the usually presnt the most powerful effect and pressure on water especially the barnacle. During high tides the barnacles grip or suction to any underwater objects or organisms would decrease or the barnacle would deattach.
