DNA sequence

DNA sequence
A DNA sequence (sometimes genetic sequence) is a succession of letters representing the primary structure of a real or hypothetical DNA molecule or strand, The possible letters are A, C, G, and T, ...
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DNA sequence information is the cornerstone for considerable experimental design and analysis in the biological sciences.
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DNA sequence variations that occur when a single nucleotide (A, T, C, or G) in the genome sequence is altered. Each individual has many single nucleotide polymorphisms that together create a unique DNA pattern for that person.
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DNA sequence: The relative order of base pairs in any sample of DNA. See base sequence analysis.
DNA sequencing: Determining the order of bases in a segment of DNA.
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DNA sequences encoding one or more protein antigens or, often, simply epitopes of the complete antigen(s);
DNA sequences incorporating a promoter that will enable the DNA to be efficiently transcribed in the human cells.
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DNA sequenced from 17-20 MY old magnolia
In the paper I explain here, the authors (Golenberg et. al., 1990) sequenced an 820 bp region (the rbcL gene) from the chloroplast DNA of a compression fossil of a magnolia.
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DNA sequence: The relative order of base pairs, whether in a fragment of DNA, a gene, a chromosome, or an entire genome. See base sequence analysis.
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A DNA sequence that is very similar in several different kinds of organisms.
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A DNA sequence element to which transcriptional factors bind. Binding of transcriptional factors increases gene transcription.
Related
Suppressor ...
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A DNA sequence coding for the pre-mRNA
An additional DNA code or other regulating process, which regulates the alternative splicing.
There are four known modes of alternative splicing: ...
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A DNA sequence that recognizes certain transcription factors that can stimulate transcription of nearby genes.
entropy
(en-truh-pee) [Gk. en, in + trope, turning] ...
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a new DNA sequence formed by the combination of two nonhomologous DNA molecules
Source: Jenkins, John B. 1990. Human Genetics, 2nd Edition. New York: Harper & Row
What Topic Is Your BIOLOGY Paper On?
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Exon. A DNA sequence that is ultimately translated into protein. See DNA.
Exonuclease. See Nuclease.
Express. To translate a gene's message into a molecular product.
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and other DNA sequence formats
.
Fauna
: A certain species of animals occurring in a particular region or period.
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Any of the DNA sequences flanking the eukaryotic genes at 3' and/or 5'. The sequences are transcribed but function is unclear.
Related Terms: DNA sequence ...
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The target DNA sequences can be on the same or on different strands.
If on different strands, an insertion, or integration, as occurs during lysogeny by lambda phage, results.
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enhancer - DNA sequence in a gene that influences the gene's expression by increasing or decreasing its rate of RNA synthesis (via effects on binding and transcription of the basal transcription apparatus including RNA Polymerase); ...
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Terminator
A DNA sequence that results in termination of transcription. See Transcription terminator.
Terminus
The region of DNA sequences where DNA replication terminates.
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Transcribe a DNA sequence and translate it into a protein!
Go to Chapter 6: DNA, RNA, Protein Synthesis Quizzes
DNA/RNA/Protein Synthesis Quiz ...
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If you take the DNA sequence of any two people, they're almost identical.
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Alternate forms of a gene or DNA sequence, which occur on either of two homologous chromosomes in a diploid organism. (See DNA polymorphism.) Alternative mRNA splicing. The inclusion or exclusion of different exons to form different mRNA transcripts.
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Alu repetitive sequence -- the most common dispersed repeated DNA sequence in the human genome accounting for 5% of human DNA. The name is derived from the fact that these sequences are cleaved by the restriction endonuclease Alu.
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PCR (Polymerase Chain Reaction) A repetitive procedure that results in a geometric amplification of a specific DNA sequence.
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An in vitro technique to produce many copies of a specific section of DNA sequence. PCR is normally used to amplify sections up to ~2kbp in length, although routine PCR of sections up to 20kbp is becoming possible.
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Researchers are also investigating heritable variation that is not connected to variations in DNA sequences that influence standard DNA replication.
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SNP: Single Nucleotide Polymorphism (SNP) - a position in a genomic DNA sequence that varies from one individual to another.
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AMPLIMER - Region of DNA sequence which is amplified during a PCR reaction and which is defined by a pair of PCR primers (these primer pairs are sometimes called amplimers).
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mutation - a change in the DNA sequence that constitutes a genetic mistake.
oligosaccharides. Polysaccharides are molecules with thousands of monosaccharideunits.
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It is caused by a repeated DNA sequence (AGC). The normal allele has 11-34 copies; affected people have 42 - 120 copies.
The severity and time of onset depends on the number of repeats.
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sticky ends Term applied to DNA sequences cut with restriction enzymes where the cuts will bond with each other or with another sequence cut with the same enzyme.
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Polymorphism
The occurrence of more than one form of, for example, a DNA sequence, type of protein or morphological trait in a group of organisms, revealing underlying genetic variation in the population.
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These include the comparisons of DNA sequences conducted within molecular biology or genomics, and comparisons of fossils or other records of ancient organisms in paleontology.
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