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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. The advent of rapid DNA sequencing methods has greatly accelerated biological and medical research and ...
DNA sequencing is the process of determining the nucleotide sequence of a given DNA fragment. The sequence of the DNA of a living thing encodes the necessary information for that living thing to survive and reproduce. Therefore, determining the sequence is useful in fundamental research into why and how organisms live, as well as in applied ...
The GenBank sequence database is an open access, annotated collection of all publicly available nucleotide sequences and their protein translations. It is produced and maintained by the National Center for Biotechnology Information (NCBI; a part of the National Institutes of Health in the United States) as part of the International Nucleotide Sequence Database Collaboration (INSDC).
The tertiary arrangement of DNA's double helix in space includes B-DNA, A-DNA, and Z-DNA. Triple-stranded DNA structures have been demonstrated in repetitive polypurine:polypyrimidine Microsatellite sequences and Satellite DNA. B-DNA is the most common form of DNA in vivo and is a more narrow, elongated helix than A-DNA. Its wide major groove ...
Updated to 3D model, different DNA sequence: 01:40, 6 July 2007: 416 × 521 (59 KB) Gringer {{Information |Description=A Single Nucleotide Polymorphism is a change of a nucleotide at a single base-pair location on DNA. Created using Inkscape v0.45.1. [modified to remove long tails on DNA] |Source=self-made |Date=2007-07-06 |Author=David Hall (~~
This vector image was created with Adobe Illustrator, ... Description=DNA sequencing trace |Source=self-made |Date=october 19, 2007 |Author= Sjef}} File usage.
However, there are relatively few databases dedicated to image collection, although some projects such as iNaturalist collect photos as a main part of their data. A special case of "images" are 3-dimensional images such as protein structures or 3D-reconstructions of anatomical structures. Image databases include, among others: [22] Allen Brain ...
DNA exists in many possible conformations that include A-DNA, B-DNA, and Z-DNA forms, although only B-DNA and Z-DNA have been directly observed in functional organisms. [14] The conformation that DNA adopts depends on the hydration level, DNA sequence, the amount and direction of supercoiling, chemical modifications of the bases, the type and ...