Worked example[edit] Drosophila females of genotype a+a b+b c+c were crossed with males of genotype aa bb cc. This led to 1000 progeny of the following phenotypes: a+b+c+: 244 (parental genotype, shows no recombination) a+b+c: 81 (recombinant between B and C) a+bc+: 23 (double recombinant) a+bc: 152 (recombinant between A and B) ab+c+: 148 (recombinant between A and B) ab+c: 27 (double recombinant) abc+: 89 (recombinant between B and C) abc: 236 (parental genotype, shows no recombination) From these numbers it is clear that the b+/b locus lies between the a+/a locus and the c+/c locus. There are 23 + 152 + 148 + 27 = 350 progeny showing recombination between genes A and B. And there are 81 + 23 + 27 + 89 = 220 progeny showing recombination between genes B and C. Thus the expected rate of double recombination is (350 / 1000) * (220 / 1000) = 0.077, or 77 per 1000. However, there are actually only 23 + 27 = 50 double recombinants. The coefficient of coincidence is therefore 50 / 77 = 0.65. Interference is 1 − 0.65 = 0.35.


References[edit] ^ a b c Griffiths AJF, Wessler SR, Lewontin RC, Carroll SB (2008) Introduction to Genetic Analysis. New York: W. H. Freeman and Company. Retrieved from "https://en.wikipedia.org/w/index.php?title=Coefficient_of_coincidence&oldid=703993435" Categories: Genetics


Navigation menu Personal tools Not logged inTalkContributionsCreate accountLog in Namespaces ArticleTalk Variants Views ReadEditView history More Search Navigation Main pageContentsFeatured contentCurrent eventsRandom articleDonate to WikipediaWikipedia store Interaction HelpAbout WikipediaCommunity portalRecent changesContact page Tools What links hereRelated changesUpload fileSpecial pagesPermanent linkPage informationWikidata itemCite this page Print/export Create a bookDownload as PDFPrintable version Languages Add links This page was last edited on 8 February 2016, at 21:56. Text is available under the Creative Commons Attribution-ShareAlike License; additional terms may apply. By using this site, you agree to the Terms of Use and Privacy Policy. Wikipedia® is a registered trademark of the Wikimedia Foundation, Inc., a non-profit organization. Privacy policy About Wikipedia Disclaimers Contact Wikipedia Developers Cookie statement Mobile view (window.RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgPageParseReport":{"limitreport":{"cputime":"0.012","walltime":"0.020","ppvisitednodes":{"value":40,"limit":1000000},"ppgeneratednodes":{"value":0,"limit":1500000},"postexpandincludesize":{"value":0,"limit":2097152},"templateargumentsize":{"value":0,"limit":2097152},"expansiondepth":{"value":2,"limit":40},"expensivefunctioncount":{"value":0,"limit":500},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 0.000 1 -total"]},"cachereport":{"origin":"mw1325","timestamp":"20180112043803","ttl":1900800,"transientcontent":false}}});});(window.RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgBackendResponseTime":64,"wgHostname":"mw1250"});});


Coefficient_of_coincidence - Photos and All Basic Informations

Coefficient_of_coincidence More Links

Chromosomal CrossoverMeiosisGenetic LinkageProduct (mathematics)Drosophila MelanogasterGenotypePhenotypeLocus (genetics)Susan R. WesslerRichard LewontinSean B. CarrollHelp:CategoryCategory:GeneticsDiscussion About Edits From This IP Address [n]A List Of Edits Made From This IP Address [y]View The Content Page [c]Discussion About The Content Page [t]Edit This Page [e]Visit The Main Page [z]Guides To Browsing WikipediaFeatured Content – The Best Of WikipediaFind Background Information On Current EventsLoad A Random Article [x]Guidance On How To Use And Edit WikipediaFind Out About WikipediaAbout The Project, What You Can Do, Where To Find ThingsA List Of Recent Changes In The Wiki [r]List Of All English Wikipedia Pages Containing Links To This Page [j]Recent Changes In Pages Linked From This Page [k]Upload Files [u]A List Of All Special Pages [q]Wikipedia:AboutWikipedia:General Disclaimer



view link view link view link view link view link