DNA sequence
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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, ...
DNA Sequence Technologies Human Genome Research in Progress
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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.
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.
DNA sequences can provide evidence for evolutionary routes in several ways. Chromosomal DNA accumulates mutations at a predictable rate as a result of errors in replication and environmental mutagens, which are not corrected by DNA repair systems.
DNA sequence recognized and cut by a restriction enzyme.
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Restriction enzyme ...
DNA sequence
- The order of nucleotide bases in the DNA molecule.
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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.
A DNA sequence signaling the termination of transcription; termination requires the presence of the rho protein.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ...
a DNA sequence anywhere on the same chromosome
D.
any DNA marker co-inherited with the genetic trait of interest ...
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: ...
A DNA sequence that recognizes certain transcription factors that can stimulate transcription of nearby genes.
entropy
(en-truh-pee) [Gk. en, in + trope, turning]
A quantitative measure of disorder or randomness, symbolized by S.
The DNA sequences announced in 2003 were only rough drafts for each human chromosome. While this draft already has advanced medical research, more detail was needed.
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
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duplex dNA sequences in a eukaryotic chromosome (corresponding to the genome of an rNA retrovirus) that are transmitted from one cell generation to the next without causing lysis of the host.
Non-coding DNA sequences do not code for amino acids. Most non-coding DNA lies between genes on the chromosome and has no known function. Other non-coding DNA, called introns, is found within genes.
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.
Enhancer A DNA sequence, usually, but not necessarily, near the promoter, which will increase the level of transcription of genes attached to it on the same DNA molecule.
Enhancers DNA sequences that have no promoter activity themselves but that can greatly enhance the activity of other promoters; enhancers can exert their stimulatory effect over a distance of several thousand nucleotides.
If you take the DNA sequence of any two people, they're almost identical.
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); ...
Terminator
A DNA sequence that results in termination of transcription. See Transcription terminator.
Terminus
The region of DNA sequences where DNA replication terminates.
Short (12 - 20 kb) DNA sequence of ctDNA without repeats.
Large single copy (LSC)
Large (80 - 90 kb) DNA sequence of ctDNA without repeats.
binding site A DNA sequence to which a protein ,such as a transcription factor, binds.
Biological Replicate True for replicate hybridizations that use samples obtained from different RNA extracts from different biological material ...
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.
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.
In situ hybridisation Use of a DNA or RNA probe to detect the presence of the complementary DNA sequence in cloned bacterial or cultured eukaryotic cells.
In vitro Outside a living organism.
In the post-genomic era, a great deal of work has focused on understanding how DNA sequence is used to programme complex nuclear, cellular and tissue functions throughout differentiation and development.
Protein complexes that form kinetochores in the centromere regions of sister chromatids are attached to specific repetitive DNA sequences, known as satellite DNA, which are similar in each chromosome.
The protein-coding DNA sequence of a gene. Compare intron.
Amino acid
Any of a class of 20 molecules that are combined to form proteins in living things.
SNP: Single Nucleotide Polymorphism (SNP) - a position in a genomic DNA sequence that varies from one individual to another.
Mutation: Any inheritable change in DNA sequence.
Mutation breeding: Commonly used practices in plant breeding and other areas in which chemicals or radiation are applied to whole organisms, for example plants, ...
CAAT box: A highly conserved DNA sequence found about 75 bp 5' to the site of transcription in eukaryotic genes. Its specific (trans-acting) transcription factor is CTF-1 (NF-1) (see also TATA / Goldberg-Hogness box).
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).
Mutation (myoo-TAY-shun) A change in a DNA sequence.
Myelin (MY-eh-lin) A fatty covering that forms a protective sheath around nerve fibers and dramatically speeds the transmission of nerve signals.
mutation - a change in the DNA sequence that constitutes a genetic mistake.
oligosaccharides. Polysaccharides are molecules with thousands of monosaccharideunits.
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.
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.
DNA sequences have played major roles in criminal cases (O.J. Simpson, as well as the reversal of death penalties for many wrongfully convicted individuals), as well as the impeachment of President Clinton (the stain at least did not lie).
An enzyme (protein) that's part of the human immunodeficiency virus reads the sequence of viral RNA nucleic acids that have entered the host cell and transcribes the sequence into a complementary DNA sequence.
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.
 See also: Sequence, DNA, Genome, Gene, Trans
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