How DNA Works

Types Bacterial Eukaryotic. D own S yndrome C ell A dhesion M olecule. In eukaryotes, transcription occurs in the cell's nucleus. To fuse the two images, erect a stiff sheet of paper or cardboard between the two views so that your left eye sees only the left image and your right eye only the right image. If you don't understand what 2' means, you obviously haven't read the first page in this sequence of pages. Triplets are groups of three successive nucleotide bases in DNA.

Journal of Molecular Biology. The coordinates used in this display have only the alpha carbons of the proteins. Elongation also involves a proofreading mechanism that can replace incorrectly incorporated bases.

3D Animations - Transcription & Translation: Transcription (Advanced):: DNA Learning Center

In Sandwalk: These pauses may be intrinsic to the RNA polymerase or due to chromatin structure. It synthesizes the RNA strand in the 5' to 3' direction, while reading the template DNA strand in the 3' to 5' direction. Please enter valid title for resource. Learn more. Stages of transcription. Two examples: The 5S molecules are produced from a different cluster of identical genes. The larger the sedimentation unit, S, the larger the molecule — but not proportionally.

This page was last edited on 17 February , at DNA Molecule: It moves forward along the template strand in the 3' to 5' direction, opening the DNA double helix as it goes. In bacteria, there is one general RNA transcription factor: Once the enzyme has attached to the DNA, it unwinds the double helix over a short length, and splits the two strands apart.

In eukaryotes, this may correspond with short pauses during transcription that allow appropriate RNA editing factors to bind. But to remind you. Eukaryotic pre-mRNA processing. Elmhurst College.

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