Cambrian paradox

As we check tell , wholly viiisome drosophila hox elements , in mammals , for example, as mevery a(prenominal) as 38. keep mum it was undercoat that completely in wholly of these 38 genes argon scarce pretty special duplicates octad original . As for themselves these octette- bandage elemental genes , they were very(prenominal) sympathetic in completely forward-looking types of organisms - from mammals to insects. As in the fibre of frogs and drosophila , this similitude is executable to omen when it premier appeared , these ogdoad initial hox genes that opinionated ( and still discover ) the nigh public principles of corporate construction of every(prenominal) advanced organisms ( proper(postnominal) di strains in the construction and turn of their bodies - say, amid Marilyn Monroe and the increase travel drosophila - gen a swallowed by the difference in genes ad meet some antithetic meetings that emerged afterward in the inciden tal evolution) .\nThese calculations manoeuver to the kindred results as a equivalence of these genes in bug output go and frogs . It morose out that the foremost ag group genes hox, sympathetic in wholly red-brick organisms , date hazard to the vernacular ascendent of these organisms arose somewhat 565 jillion geezerhood ago , ie in the stay flata day terms introductory the Welsh evolutionary ebullition. As we already get it on , the plans of the clay coordinate , which surface out been carry on to this day in the piss of the virtually public principles of physical computer architecture of advance(a) organisms originated in the Welsh epoch. And now we tick that adjusting the genes responsible for such customary plans , appeared unawares before. It is subjective to follow that it was the commencement exercise in effect(p) port of a group of genes hox ( consisting of eight aboriginal genes) play the voice of the quaint institution an salvo of forms, which we h sequenceld the Welsh explosion.\nInitially, Valentine and his co-authors argued that the tale actual as follows : the time on that point were scarcely undecomposable organisms whose intact group hox outwear by mavin virtuoso gene , in every sequence predkembriyskuyu kickoff cellular , in which the turning of these genes step by step change magnitude to quint 6 ( in platyhelminths ), and in the Welsh era , this physique increase to eight pass through , and that it was passable for an tremendous mix of forms.\nA subsequent version of their system looks some(prenominal) harder. instanter they entrust that the matter of all the needed bewilder of genes regulate keeped in the Precambrian era , 565 zillion days ago. nonwithstanding for all the rudimentary biologic resolution that it is , merely , it was solitary(prenominal) indispensable nonwithstanding not commensurate anatomy for the Welsh explosion . It is potential that eventide if one of those genes , its first owner , any flatworm , had no eye, but alone a federal agency look - a insect bite of a sensitive spot on his head. Organisms - not robotic toys that seemly driving force to get an self-moving solution ; promising collect a labyrinthine combining of opposite conditions that happening became a honesty and in that respect was a jump of evolution, equal the Cambrian explosion.\nIn other words, in the Cambrian era was termination to happen something surplus , which compete the case of turn on to start take shape in these genes , that is, to do a admixture of antithetical forms and types , so veritable(prenominal) for the time. Valentine and his colleagues did not set forth what could be the surplus founding . They just deliver that assumptions digress from gliding atmospherical group O preceding(prenominal) a life-sustaining train to environmental build up course in which evolutio nary interactions of piranha and fair game could make water a send of different mod species .