Protein Synthesis: Prokaryotes vs.
POLYPEPTIDE AND PROTEIN SYNTHESIS.
The leader sequence is the portion of DNA that is transcribed into the ribosome binding site of the mRNA (see below under translation.) The coding sequence contains the actual message for protein synthesis.
Protein synthesis inhibition in eukaryotes resulting.
Video Lectures, Video Courses, Science Animations, Protein synthesis is the creation of proteins using.
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Translation: Protein Synthesis.
THE INFORMATION FOR PROTEIN SYNTHESIS IS IN THE DNA ..
Another enzyme then moves along the exposed DNA strand joining newly arrived nucleotides into a new DNA strand that is complementary to the template. DNA polymerase is represented by the small brown pastebrush in the animation.
DNA polymerase makes very few errors and it corrects most of those quickly. In addition, there are other enzymes that follow along and "proofread" the nucleotides to be certain that the new nucleotides are actually complementary to the template strand. Any misfits are booted out and replaced with the proper base. Thanks to this magnificent system,
Each cell contains a family of more than thirty enzymes necessary to insure the accurate replication of DNA.
DNA and Protein Synthesis - BioTopics Website
Not represented in the animation are the primers necessary for DNA replication. Though DNA polymerase can elongate a polynucleotide strand by adding new nucleotides, it cannot start a strand from scratch because it can only bond new nucleotides to a free sugar (3') end of a nucleotide chain. This small strand of nucleotides (binds) by complementary base pairing to the beginning of the area being copied. With the primer in place, DNA polymerase is then able to continue adding the rest of the pairs of the segment until a new double strand of DNA is completed. Primers are formed from free nucleotides in the cell by enzymes called .