What is the transcription process?
The transcription process occurs in all cells and leads to RNA sources. DNA in the cell provides a transcript or plan that determines the sequence of nucleotides that are connected to form RNA. Depending on the type of cell, transcription in the nucleus or cytoplasm occurs. In eukaryotech-cells that contain organelles bound to the membrane-with in the nucleus there is a transcription. In Prokaryoty - cells that do not contain organelles - the process takes place in the cytoplasm. There are two steps in the formation of proteins, which are the transcription process and the RNA translation that is produced. Messenger RNA (MRNA), Ribosomal RNA (RRNA) and Transmission RNA (TRNA) are three types of RNA that can be produced. All three are necessary to create proteins in the cytoplasm.
The transcription process is involved several different steps that are controlled by enzymes called RNA polymerase. To start the transcription process, RNA polymerase binds to the DNA molecule in a specific area called promoter. This area withIt takes place along the DNA chain in front of the point where the gene will be rewritten. When RNA polymerase is connected in the promoter area, the double cut DNA is released and unpacked so that it can move along a single spring of the molecule.
One DNA string is used as a template for the sequence of RNA nucleotides that will be connected to create a new RNA spring. For each DNA nucleotide there is a corresponding RNA nucleotide that is connected to create a RNA molecule, and DNA and RNA contain four nucleotides. Guanin, cytosine and adenin are found in DNA and RNA. Thymin is found only in DNA; RNA contains uracil instead of thymine.
When the polymerase moves along the bottom chain, Guanin connects, if it encounters cytosine and vice versa. When Thymin appears in the DNA chain, Adenin is added to the RNA chain. Finally, when the DNA Adenin nucleotide has the corresponding RNA nucleotide. Each of the additional nucleotides is inAvailable to the previous one in the chain until the final termination code on the DNA spring is achieved. At this point, RNA polymerase tears out of the DNA molecule and releases a new RNA chain.