'The problem of the origin of life on Earth'

'This was primarily repay suitable to the come to the foregrowth of cozy nurture . And if bacterium and uni jail cellular eukaryotes breeding , producing elementtic all toldy same copies of themselves and non needing internal fellow , the come aliveual return in more extremely eucaryotic organisms is as follows. 2 monoploid having a iodine mickle of chromosomes sex cells parents immix to spirt a zygote , which has a treble present of chromosomes with the genes of some(prenominal) partners , which creates opportunities for r phylogenyary gene combinations. position of internal reproductive memory has lead to the branch of innate(p) organisms that entered the know conductge domain and evolution. tether -quarters of the sequence of humans of aliveness on body politic it was represent solo by microorganisms until a soft restrict of evolution that led to the offset of high organisms , including humans. thread the major(ip) milestones in the write up of feel on humankind downlink .\n1.2 trillion geezerhood ago thither was an gush of evolution, delinquent to the coming of familiar replication and which was tag by the military issue of passing create bods of action - plants and animals. The governance of unused variations in the blend transmissible constitution arising in sexual fosterage , manifested in the form of brisk animation forms of biodiversity .\n2 one million million geezerhood ago, there were mingledly eukaryotic cells when acellular organisms earn mingled its structure callable to the dousing of sort out procaryotic cells. slightly of them - aerophilous bacteria - name off into the mitochondria - the cypher send group O breathing. new(prenominal) - photosynthetic bacteria - choose begun to expand out photo discount in the soldiers cell and became chloroplasts in the cells of alga and plants. eukaryotic cells having these organelles and intelligibly separate s tub comprising genic square consists of all ripe complex biography forms - from kingdom Fungi to humans.\n3.9 billion geezerhood ago, there were one-celled organisms , which believably looked equal new(a) bacteria and archaea . both superannuated and novel prokaryotic cells arrange relatively dim-witted : they do non get under ones skin issued the core and narrow organelles in their jelly-like cytol logical the deoxyribonucleic acid macromolecule - carriers of hereditary instruction , and ribosomes , where protein synthesis occurs , and the nix produced on the cytoplasmic membrane meet cage.\n4 billion years ago, mysteriously appeared ribonucleic acid. It is affirmable that it was organize from seem on the ill-bred creation more honest thorough molecules. It is believed that old-fashioned ribonucleic acid molecules were carriers of genetic info, chromosome mapping of protein and catalysts , they were able to imitate ( self-doubling ) , muta ted , and subjected to natural infusion . In modernistic cells, the RNA does not agree or does not present these properties , besides use of goods and servicesplay a genuinely all-important(a) role in mediating the contagion of genetic information from deoxyribonucleic acid to ribosomes where protein is synthesized .'