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I read the relevant section of DNA as well as A-DNA and I don't really get it. Chick Bowen 16:16, 24 March 2011 (UTC) So I made this image... I think it's quite good, but we should split any discussion of it off to the picture peer review. - Zephyris Talk 22:59, 28 March 2011 (UTC) New image The structure of the DNA double helix.
This is an accepted version of this page This is the latest accepted revision, reviewed on 19 January 2025. Manipulation of an organism's genome For a non-technical introduction to the topic of genetics, see Introduction to genetics. For the song by Orchestral Manoeuvres in the Dark, see Genetic Engineering (song). For the Montreal hardcore band, see Genetic Control. Part of a series on ...
DNA sequencing is the process of determining the nucleic acid sequence – the order of nucleotides in DNA.It includes any method or technology that is used to determine the order of the four bases: adenine, guanine, cytosine, and thymine.
As for the color of the nucleotides, I'd prefer coloring purines in one color, pyrimidines in another. A legend would also be appreciated, as others have argued. Finally, I think this kind of 'stick' DNA representation is somewhat out of fashing in favour of the space filling DNA representations you see in most molecular biology books.
The DNA "tile" structure in this image consists of four branched junctions oriented at 90° angles. Each tile consists of nine DNA oligonucleotides as shown; such tiles serve as the primary "building block" for the assembly of the DNA nanogrids shown in the AFM micrograph. Quadruplex DNA may be involved in certain cancers.
Recombinant DNA molecules are sometimes called chimeric DNA because they can be made of material from two different species like the mythical chimera. rDNA technology uses palindromic sequences and leads to the production of sticky and blunt ends. The DNA sequences used in the construction of recombinant DNA molecules can originate from any ...
DNA replication also works by using a DNA template, the DNA double helix unwinds during replication, exposing unpaired bases for new nucleotides to hydrogen bond to. Gene synthesis, however, does not require a DNA template and genes are assembled de novo. DNA synthesis occurs in all eukaryotes and prokaryotes, as well as some viruses. The ...
DNA can be copied very easily and accurately because each piece of DNA can direct the assembly of a new copy of its information. This is because DNA is made of two strands that pair together like the two sides of a zipper. The nucleotides are in the center, like the teeth in the zipper, and pair up to hold the two strands together.