Next to the gene is the promoter. You may know the promoter already as the region where RNA polymerase binds to initiate transcription. Not all promoters have the same DNA sequence, even though RNA polymerase binds at all promoters.
February 16, 2016. Plaster of Paris is a wonderful art medium that is easy to use for creating things from moulds and free form artwork. It's a powdered substance that becomes a pourable mixture when combined with water. The mixture is light and thin enough that it fills in even the finest details on the mould.
The mold we are making will be of plaster of Paris and can be used to cast aluminium, brass, bronze, silver, gold or zinc. These methods can also be used to make a plaster backup plate for making sand molds. For cast iron or high melting point bronze sand molds are better than plaster. Figure 3.