DNA: Ìyàtọ̀ láàrin àwọn àtúnyẹ̀wò

Content deleted Content added
No edit summary
Ìlà 10:
[[File:DNA chemical structure.svg|thumb|300px|Idimu oloogun DNA. Awon [[Hydrogen bond|ide haidrojin]] han bi ila alami.]]
 
DNA je is a long [[polymer|alarapupo]] madegigun fromto repeatingje unitsdida calledlati awo eyo to un tunde to nje [[nucleotide|nukleotidi]]s.<ref>{{cite book | last = Saenger | first = Wolfram | title = Principles of Nucleic Acid Structure | publisher = Springer-Verlag | location = New York | year = 1984 | isbn = 0-387-90762-9 }}</ref><ref name=Alberts>{{cite book |last=Alberts |first=Bruce | coauthors=Alexander Johnson, Julian Lewis, Martin Raff, Keith Roberts and Peter Walters |title=Molecular Biology of the Cell; Fourth Edition |publisher=Garland Science|year=2002 |location=New York and London |url=http://www.ncbi.nlm.nih.gov/books/bv.fcgi?call=bv.View..ShowTOC&rid=mboc4.TOC&depth=2 |isbn=0-8153-3218-1 |oclc=145080076 48122761 57023651 69932405}}</ref><ref name=Butler>{{cite book | author=Butler, John M. | year=2001 | title=Forensic DNA Typing | publisher= Elsevier | isbn=978-0-12-147951-0 | oclc=223032110 45406517}} pp. 14–15.</ref> AsBo firstse koko je discoveredwiwari bylatowo [[James D. Watson]] andati [[Francis Crick]], theidimu structureDNA ofgbogbo DNAawon ofirueda allni speciesawon comprisesewon twoonilopo helicalmeji chainsti eachikookan coiledwon roundlo theipo samekanna axiska, andti eachikookan withwon asi pitchni ofite 34&nbsp;[[Ångström]]s (3.4&nbsp;[[nanometre]]s) andati a radius ofitanka 10&nbsp;[[Ångström]]s (1.0&nbsp;[[nanometre]]s).<ref name=FWPUB>{{cite journal| author = Watson J.D. and Crick F.H.C. | pmid=13054692 | doi = 10.1038/171737a0 | url= http://www.nature.com/nature/dna50/watsoncrick.pdf | title=A Structure for Deoxyribose Nucleic Acid | journal=Nature | volume=171 | pages=737–738 | year=1953 | format=PDF| issue = 4356 | bibcode=1953Natur.171..737W}}</ref> AccordingGegebi toàgbékà miran anotherse studyso, whennigba measuredto inje awiwon particularnidu solutionomiadalu pato kan, theewon DNA chainni measurediwon 22 tode 26&nbsp;[[Ångström]]s wideni fife (2.2 to 2.6&nbsp;[[nanometre]]s), andbe onesini nucleotideeyo unitnukleotidi measuredkan ni iwon 3.3&nbsp;Å (0.33&nbsp;nm) longni gigun.<ref>{{cite journal |author=Mandelkern M, Elias J, Eden D, Crothers D |title=The dimensions of DNA in solution |journal=J Mol Biol |volume=152 |issue=1 |pages=153–61 |year=1981 |pmid=7338906 |doi=10.1016/0022-2836(81)90099-1}}</ref> AlthoughBotilejepe eachikookan individualeyo repeatingto unituntunde isje very smallkenkele, awon alarapupo DNA polymersle canje behoro verytitobi largeto moleculesni containingegbeegberun millionsnukleotidi of nucleotidesninu. ForFun instanceapere, the largest [[human chromosome|kromosomu omoniyan]] to tobijulo, chromosomekromosomu numbernomba 1, isje approximatelybi 220 millionegbeegberun [[base pair]]s longni gigun.<ref>{{cite journal |author=Gregory S |title=The DNA sequence and biological annotation of human chromosome 1 |journal=Nature |volume=441 |issue=7091 |pages=315–21 |year=2006 |pmid=16710414 | doi = 10.1038/nature04727 |last2=Barlow |first2=KF |last3=McLay |first3=KE |last4=Kaul |first4=R |last5=Swarbreck |first5=D |last6=Dunham |first6=A |last7=Scott |first7=CE |last8=Howe |first8=KL |last9=Woodfine |first9=K|bibcode = 2006Natur.441..315G }}</ref>
 
In living organisms DNA does not usually exist as a single molecule, but instead as a pair of molecules that are held tightly together.<ref name=FWPUB>{{cite journal| author = Watson J.D. and Crick F.H.C. | pmid=13054692 | doi = 10.1038/171737a0 | url= http://www.nature.com/nature/dna50/watsoncrick.pdf | title=A Structure for Deoxyribose Nucleic Acid | journal=Nature | volume=171 | pages=737–738 | year=1953 | accessdate=4 May 2009|format=PDF| issue = 4356 | bibcode=1953Natur.171..737W}}</ref><ref name=berg>Berg J., Tymoczko J. and Stryer L. (2002) ''Biochemistry.'' W. H. Freeman and Company ISBN 0-7167-4955-6</ref> These two long strands entwine like vines, in the shape of a [[double helix]]. The nucleotide repeats contain both the segment of the backbone of the molecule, which holds the chain together, and a nucleobase, which interacts with the other DNA strand in the helix. A nucleobase linked to a sugar is called a [[nucleoside]] and a base linked to a sugar and one or more phosphate groups is called a [[nucleotide]]. Polymers comprising multiple linked nucleotides (as in DNA) are called a [[polynucleotide]].<ref name=IUPAC>[http://www.chem.qmul.ac.uk/iupac/misc/naabb.html Abbreviations and Symbols for Nucleic Acids, Polynucleotides and their Constituents] IUPAC-IUB Commission on Biochemical Nomenclature (CBN). Retrieved 03 January 2006.</ref>
Ìlà 27:
 
{{ẹ̀kúnrẹ́rẹ́}}
 
== Itokasi ==
{{Reflist|30em}}
Jẹ́ kíkójáde láti "https://yo.wikipedia.org/wiki/DNA"