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Topic: Deoxyribonucleic acid


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DNA

In the News (Sat 2 Jun 12)

  
  Deoxyribonucleic Acid - MSN Encarta
A protein is composed of smaller molecules called amino acids, and the structure and function of the protein is determined by the sequence of its amino acids.
For instance, the triplet GAC (guanine, adenine, and cytosine) is the codon for the amino acid leucine, and the triplet CAG (cytosine, adenine, and guanine) is the codon for the amino acid valine.
A protein consisting of 100 amino acids is thus encoded by a DNA segment consisting of 300 nucleotides.
encarta.msn.com /encyclopedia_761561874/Deoxyribonucleic_Acid.html   (902 words)

  
 Uptake of Thymidine and Synthesis of Deoxyribonucleic Acid in Mouse Ascites Cells
RECENT studies of the synthesis of deoxyribonucleic acid have suggested that the radiation-sensitive period may occur at a stage in the cell-cycle before the polymerization of new deoxyribonucleic acid begins, that is, during the G1 period
Autoradiographs were prepared in the usual manner, the cells being air dried, fixed with 2 per cent acetic acid or with 45 per cent acetic acid in alcohol and washed before the application of the stripping film.
The solutions of deoxyribonucleic acid and the cell suspensions were homogenized by treatment with ultrasonics before plating on aluminium planchettes.
www.nature.com /nature/journal/v187/n4737/abs/187614a0.html   (402 words)

  
  NDI Terminology - deoxyribonucleic acid   (Site not responding. Last check: 2007-08-31)
DNA; the nucleic acid in which the sugar is deoxyribose, constituting the primary genetic material of all cellular organisms and the DNA viruses, and occurring predominantly in the nucleus.
The strands are twisted to form a double helix and are antiparallel.
DNA is duplicated by replication, and it serves as a template for synthesis of ribonucleic acid (transcription).
www.ndif.org /Terms/deoxyribonucleic_acid.html   (123 words)

  
 Deoxyribonucleic acid   (Site not responding. Last check: 2007-08-31)
Deoxyribonucleic Acid Learn about the structure of DNA, how it replicates, protein synthesis and its history.
Acid Rain and Deposition A general overview of acid rain and deposition, its causes and effects.
Of or pertaining to an acid; as, acid reaction.
www.serebella.com /encyclopedia/article-Deoxyribonucleic_acid.html   (368 words)

  
 Nobel Prize in Physiology or Medicine 1962 - Presentation Speech
The discovery of the three-dimensional molecular structure of the deoxyribonucleic acid - DNA - is of great importance because it outlines the possibilities for an understanding in its finest details of the molecular configuration, which dictates the general and individual properties of living matter.
Deoxyribonucleic acid is a high polymer composed of a few types of building blocks, which occur in large numbers.
The code contained in the deoxyribonucleic acid is transferred in cell division, that is in the normal growth of the organism, and also in the fusion of the sexual cells.
www.nobel.se /medicine/laureates/1962/press.html   (1185 words)

  
 Transforming Activity of Deoxyribonucleic Acid labelled with 5-Bromouracil
demonstrated that deoxyribonucleic acid from Bacillus subtilis grown in 5-bromouracil-supplemented media contained this analogue and retained its transforming activity.
It thus became important to determine the specific transforming activity for purified fractions of each of the three molecular variants of deoxyribonucleic acid which can be extracted from organisms treated with 5-bromouracil : (1) unlabelled deoxyribonucleic acid molecules, and those in.
Guthrie), served as the donors of deoxyribonucleic acid.
www.nature.com /nature/journal/v188/n4752/abs/188743a0.html   (292 words)

  
 DNA - Wikipedia, the free encyclopedia
Deoxyribonucleic acid (DNA) is a nucleic acid that contains the genetic instructions specifying the biological development of all cellular forms of life (and many viruses).
DNA is often referred to as the molecule of heredity, as it is responsible for the genetic propagation of most inherited traits.
Watson, James, and Francis Crick, "Molecular structure of nucleic acids, A structure for Deoxyribose Nucleic Acid".
en.wikipedia.org /wiki/DNA   (5255 words)

  
 Deoxyribonucleic Acid
Deoxyribonucleic Acid, a double stranded macromolecule of helical structure (comparable to a spiral staircase).
Both single strands are linear, unbranched nucleic acid molecules build up from alternating deoxyribose (sugar) and phosphate molecules.
Each deoxyribose part is coupled to a nucleotide base, which is responsible for establishing the connection to the other strand of the DNA.
www.iscid.org /encyclopedia/Deoxyribonucleic_Acid   (130 words)

  
 SurfWax: News, Reviews and Articles On Deoxyribonucleic Acid
Deoxyribonucleic acid (DNA), found in nucleus of a cell in human body, can be deduced from a number of evidences in the crimescene, such as saliva, hair, blood, semen, sweat, hat, collar of shirt, pillow, blanket and bedsheet.
Deoxyribonucleic acid (DNA) and ribonucleic acid (RNA) are the two chemical substances involved in the genetic transmission of characteristics from parent to offspring and in the manufacture of proteins.
It is all because of science's grasp of deoxyribonucleic acid, DNA the subject of a five-part series on public television beginning today that recounts the discovery of DNA's structure in 1953 and the biological revolution it sparked.
news.surfwax.com /chemistry/files/Deoxyribonucleic_Acid.html   (4234 words)

  
 13-4240 - Postconviction deoxyribonucleic acid testing
The evidence was not previously subjected to deoxyribonucleic acid testing or was not subjected to the testing that is now requested and that may resolve an issue not previously resolved by the previous testing.
G. If the prosecutor or defense counsel has previously subjected evidence to deoxyribonucleic acid testing, the court may order the prosecutor or defense counsel to provide all the parties and the court with access to the laboratory reports that were prepared in connection with the testing, including underlying data and laboratory notes.
If the court orders deoxyribonucleic acid testing pursuant to this section, the court shall order the production of any laboratory reports that are prepared in connection with the testing and may order the production of any underlying data and laboratory notes.
www.azleg.state.az.us /ars/13/04240.htm   (669 words)

  
 deoxyribonucleic acid   (Site not responding. Last check: 2007-08-31)
DNA is the acronym for deoxyribonucleic acid, which encodes genetic information in cells and determines their structure, function and behavior.
DNA, or deoxyribonucleic acid, is considered the best evidence because everyone has a unique order of DNA in his or her cells, such as from semen, blood and...
SUDBURY -- Deoxyribonucleic acid or photosynthesis may not be subjects that inspire most poets to write a poem, but an ode to Newton's Law of Motion or a haiku...
www.biometnews.com /biotechnology/deoxyribonucleic_acid.html   (317 words)

  
 Deoxyribonucleic acid DNA   (Site not responding. Last check: 2007-08-31)
recombinant deoxyribonucleic acid - definition of recombinant deoxyribonucleic a...
Simultaneous Rates of Ribonucleic Acid and Deoxyribonucleic Acid Syntheses for E...
Mid Term Papers: Term Papers on Deoxyribonucleic Acid And Ribonucleic Acid Are T...
www.scienceoxygen.com /biology/65.html   (180 words)

  
 deoxyribonucleic acid
Study of the conditions and mechanism of the diphenylaminc reaction for the colorimetric estimation of deoxyribonucleic acid.
Deoxyribonucleic acid stores the hereditary information that is passed on from one generation to the next and orchestrates the complicated world of the cell.
DNA, or deoxyribonucleic acid, is a person's genetic blueprint.The odds of a random or false match are estimated at one in a trillion.
www.cancer-help.org /cancer/0604/deoxyribonucleic_acid.html   (1457 words)

  
 DNA (deoxyribonucleic acid)   (Site not responding. Last check: 2007-08-31)
DNA deoxyribonucleic acid is the genetic material contained in most living organisms that can be used, like a fingerprint, to identify and differentiate...
Chromosome aberrations occur in DNA [Deoxyribonucleic acid], in which nucleotide breaks occurs in the chromosomes leading to aberrations, which may lead to...
Partial DNA (Deoxyribonucleic acid) sequences such as expressed sequence tags (EST's), not associated with an expressed characteristic should not be paten...
www.biometnews.com /gmo/DNA_(deoxyribonucleic_acid).html   (314 words)

  
 DEOXYRIBONUCLEIC ACID - Definition
In nature, base pairs form only between A and T and between G and C; thus the base sequence of each single strand can be deduced from that of its partner.
An organic acid and polymer composed of four nitrogenous bases--adenine, thymine, cytosine, and guanine linked via intervening units of phosphate and the pentose sugar deoxyribose.
DNA is the genetic material of most organisms and usually exists as a double-stranded molecule in which two antiparallel strands are held together by hydrogen bonds between adeninethymine and cytosine-guanine.
www.hyperdictionary.com /dictionary/deoxyribonucleic+acid   (224 words)

  
 Deoxyribonucleic acid - (deoxyribonucleic acid)   (Site not responding. Last check: 2007-08-31)
Definition:, Nucleic acid comprised of two complementary chains of repeating deoxyribonucleotide subunits.
The climber, who in molecules of human deoxyribonucleic acid had to ascend millions of Deoxyribonucleic acid is no staircase in which one can climb;
English, deoxyribonucleic acid, The chemical used to store genetic information in an individual.
teaching-philosophy.qianbaidai.com /pqbd/teaching-philosophy-deoxyribonucleic-acid.html   (152 words)

  
 Flow cytometric analysis of primary and metastatic bladder cancer   (Site not responding. Last check: 2007-08-31)
Tumor heterogeneity was defined as polyclonal aneuploidy of the primary tumor (not identified in the population studied) or as a difference in the deoxyribonucleic acid index of the primary and metastatic sites of 0.20 or more (8 patients).
When patient survival was compared to the ploidy of the metastatic site, or in patients with diploid primary and metastatic lesions versus deoxyribonucleic acid aneuploidy at either the primary and/or metastatic site, the aneuploid tumors had a longer survival but this difference was not significant (p equals 0.13 and 0.23, respectively).
It also suggests that the presence of metastasis may be a more important factor to define the biological potential of transitional cell carcinoma than is deoxyribonucleic acid ploidy.
imsdd.meb.uni-bonn.de /cgi-bin/mycite?ExtRef=MEDL/90230360   (232 words)

  
 The Innocence Project: View Bill Ariz. Rev. Stat. sect. 13-4240 (2000)   (Site not responding. Last check: 2007-08-31)
If the prosecutor or defense counsel has previously subjected evidence to deoxyribonucleic acid testing, the court may order the prosecutor or defense counsel to provide all the parties and the court with access to the laboratory reports that were prepared in connection with the testing, including underlying data and laboratory notes.
The type of deoxyribonucleic acid analysis to be used.
If the results of the postconviction deoxyribonucleic acid testing are not favorable to the petitioner, the court shall dismiss the petition.
www.innocenceproject.org /legislation/display_description.php?id=Section-13-1420&sort=jurisdiction&filterStatus=all&filterJurisdiction=all&filterCategory=all   (751 words)

  
 The Individualist: Deoxyribonucleic acid (DNA)
Deoxyribonucleic acid (DNA) is a nucleic acid —usually in the form of a double helix— that contains the genetic instructions specifying the biological development of all cellular forms of life, and most viruses.
DNA is a long polymer of nucleotides and encodes the sequence of the amino acid residues in proteins using the genetic code, a triplet code of nucleotides.
In complex Eukaryotic cells such as those from plants, animals, fungi and protists, most of the DNA is located in the cell nucleus.
www.dadamo.com /wiki/wiki.pl/Deoxyribonucleic_acid_(DNA)   (1352 words)

  
 Identification, isolation, and cloning of growth hormone (GH)-inducible interscapular brown adipose complementary ...   (Site not responding. Last check: 2007-08-31)
Identification, isolation, and cloning of growth hormone (GH)-inducible interscapular brown adipose complementary deoxyribonucleic acid from GH antagonist mice.
In a dwarf mouse line that expresses a GH antagonist, we found that the interscapular brown adipose tissue (iBAT) mass is significantly greater than that in nontransgenic littermates.
BLAST searches suggested that clone 42 is highly homologous to a gene found in a human female fetal brain and a related gene found in a human pituitary tumor.
www.arclab.org /medlineupdates/abstract_11416014.html   (216 words)

  
 ipedia.com: DNA Article
REDIRECT Deoxyribonucleic acid is a nucleic acid which carries genetic instructions for the biological development of all cellular forms of life and many viruses.
The relationship between the nucleotide sequence and the amino-acid sequence of the protein is determined by simple cellular rules of translation, known collectively as the genetic code.
Reading along the "protein-coding" sequence of a gene, each successive sequence of three nucleotides (called a codon) specifies or "encodes" one amino acid.
www.ipedia.com /dna.html   (2797 words)

  
 A Structure for DNA (Nature April 2, 1953)   (Site not responding. Last check: 2007-08-31)
Their model consists of three intertwined chains, with the phosphates near the fibre axis, and the bases on the outside.
It has been found experimentally (3,4) that the ratio of the amounts of adenine to thymine, and the ration of guanine to cytosine, are always very close to unity for deoxy ribose nucleic acid.
The previously published X-ray data (5,6) on deoxyribose nucleic acid are insufficient for a rigorous test of our structure.
academy.d20.co.edu /kadets/lundberg/dnapaper.html   (934 words)

  
 The After Birth of Dioxin or Agent Orange (Part 4)
And since we are discussing the various acids we are then discussing the DNA chemical process.
DNA IS>>>> A nucleic acid that carries the genetic information in the cell and is capable of self-replication and synthesis of RNA.
One of a class of RNA molecules that transport amino acids to ribosomes for incorporation into a polypeptide undergoing synthesis.
www.useless-knowledge.com /articles/apr/june023.html   (2143 words)

  
 Definition of deoxyribonucleic acid - NCI Dictionary of Cancer Terms
Definition of deoxyribonucleic acid - NCI Dictionary of Cancer Terms
The Nation's Investment in Cancer Research FY 2008
The molecules inside cells that carry genetic information and pass it from one generation to the next.
www.cancer.gov /Templates/db_alpha.aspx?CdrID=44393   (35 words)

  
 Isolation and Characterization of a Haploid Germ Cell-Specific Novel Complementary Deoxyribonucleic Acid; ...
The deduced amino acid sequence is shown under the nucleotide sequence and numbering of amino acid residues starts at the position of the presumed initiation methionine.
Alignment of the deduced amino acid sequences of the scots from mouse testis, pig heart [23], and human heart [24].
The nucleotide and deduced amino acid (in parentheses) sequences were compared between two scots, and homology was demonstrated as a percentage.
www.biolreprod.org /cgi/content/full/63/6/1601   (4952 words)

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