Skírnir

Volume

Skírnir - 01.04.2007, Page 149

Skírnir - 01.04.2007, Page 149
ar d‡pra. Hann til heyr›i hópi líf fræ› inga sem und ir áhrif um frá end ur upp götv un erf›a lög mála Mendels ári› 1900 töldu flró un ina ekki ger ast smátt og smátt, eins og Darwin og stu›n ings menn hans töldu, held ur í vel af mörk u› um stökk um. Helsti tals ma› ur stökk breyti flró un ar sinna í Bret landi var d‡ra fræ› ing ur inn Willi - am Bateson (1861–1926) sem ári› 1902 s‡ndi fyrst ur manna fram á a› erf›a lög mál Mendels gátu sk‡rt erf› ir í d‡r um. Bateson kynnti and stö›u s‡na vi› flró un ar hug mynd ir Darwins ári› 1894 í rit inu Ma ter i als for the Stu dy of Vari ation sem kom af sta› mik illi deilu inn an breskr ar líf fræ›i.83 Kjarn inn í hug mynd um Batesons var a› flró un ar til gát ur sem ekki var hægt a› prófa me› a› fer› um efna- og e›l is fræ› inn ar væru ein ung is frum speki leg ar vanga velt - ur.84 Me› fletta í huga flarf ekki a› koma á óvart a› Bateson haf›i grí› ar leg áhrif á Hog ben sem ári› 1927 taldi lík legt a› „fleg ar saga flró un ar kenn ing ar inn ar ver› ur rit u› a› öld li› inni muni bók Batesons Ma ter i als for the Stu dy of Vari ation skipa mun stærri sess á sí› um henn ar en The Orig in of Species …“.85 Nú vit um vi› a› Hog ben haf›i rangt fyr ir sér var› andi sögu - legt mik il vægi verka Batesons. Segja má a› n‡-pósi tí vism inn hafi byrgt hon um s‡n á a› mögu legt væri a› sam eina nátt úru val i› og lög mál Mendels, enda var ekki hægt a› s‡na fram á gildi fyrr - nefndu kenn ing ar inn ar me› til raun um. Pósi tí vismi Hux leys og a› dá un hans á Darwin haf›i flver öf ug áhrif enda var hon um, eins og fram hef ur kom i›, annt um a› sam eina alla flræ›i líf fræ› inn ar und ir einn hatt. fiarf flví ekki a› koma á óvart a› me› riti sínu Evolution, Modern Synt hes is (1942) var Huxley einn helsti hug - mynda smi› ur n‡ja sam run ans flar sem erf›a fræ›i Mendels, kenn - ing Darwins um nátt úru val i› og fleiri flætt ir líf fræ› inn ar runnu sam an í eina heild stæ›a kenn ingu sem mynda horn stein nú tíma ráðist að rótum pósitívismans 149skírnir 83 Provine, Willi am, The Orig ins of The or et ical Population Genet ics, Chicago: The Uni versity of Chicago Press, 1971. 84 Bateson, Willi am, “Pres identi al Address to BAAS 1914,” Report of the Eighty- Fo urth Meet ing of the Brit ish Associ ation for the Advancem ent of Sci ence, London: John Murray, bls. 3–38, 1915, bls. 11. 85 Hog ben, Lancelot, Princip les of Evolution ary Biology, Cape Town: Juta, 1927, bls. 114. Skirnir vor 2007-med ollum-1:Skírnir haust nota-1 25.4.2007 14:27 Page 149
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