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A curious fact is that there are beings, such as protozoa, which have two alternative reproduction (sexual and asexual), but they choose the way sexual. Is there any advantage in this form of reproduction? Apparently the answer may be yes. Let us see why. The American geneticist Hermann Joseph Muller, in his studies, he judged that the mutations that occur in living organisms, causing more harm than good and these are clustered faster in species that reproduce asexually in a "dead end." Sexual reproduction, by consenting to mix genetic material, could reverse the problem by avoiding harmful consequences that mutations can cause. Currently, the changes are seen as the origin of the diversity of living things, and that if they are not reprimanded by nature, at least in part, endangers the survival by decreasing constantly adapting plants and animals to their environment ( FIORAVANTI, Seems clear that reproduction is a characteristic common to all living beings. Regardless of the species, all living things reproduce. To our knowledge, the only beings in which there is controversy whether they are living or inert, are viruses. Being alive or not, viruses are considered obligate parasites because they have no form of independent reproduction of their hosts. When out of its host organism, crystallize and behave as inanimate matter. For scientists one thing is certain - in all forms of reproduction of living organisms, the genetic material (DNA) is transmitted to offspring. Studies conducted in 2002 by physicist José Fernando Fontanari, the Institute of Physics of São Carlos, explain that DNA molecules may be the only molecules on the early Earth resisted the process for formation of living beings, and that the DNA may have emerged from strong competition with other chemical structures capable of reproducing themselves (FIORAVANTI, 2005).
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Znatiželjni Činjenica je da postoje bića, kao što su protozoa, koje imaju dva alternativna reprodukciju (seksualni i aseksualna), ali oni izabrati smjer seksualno. Ima li prednost u tom obliku reprodukcije? Navodno odgovor može biti pozitivan. Neka nam vidjeti zašto. Američki genetičar Hermann Joseph Muller, u svojim studijama, je smatrao da su mutacije koje se javljaju u živim organizmima, što uzrokuje više štete nego koristi, a to su grupirani brže vrste, razmnožavaju se aseksualno u "slijepu ulicu." Seksualna reprodukcija, prema pristao da se miješaju genetski materijal, mogao preokrenuti problema i izbjegavanjem štetnih posljedica koje mogu izazvati mutacije. Trenutno, promjene su vidjeli da su izvor različitosti živih bića, i da, ako im se ne zamjera po prirodi, barem djelomično, ugrožava opstanak smanjenjem stalne prilagodbe biljaka i životinja u njihovom okruženju ( Fioravanti, Čini se jasnim da je reprodukcija je karakteristika zajedničko svim živim bićima. Bez obzira na vrstu, sva živa bića razmnožavaju. Prema našim saznanjima, jedini bića u kojima je kontroverze jesu li živi ili inertni, su virusi. Biti živ ili ne, virusi se smatra obvezuje paraziti, jer oni nemaju oblik samostalnog razmnožavanja od svojih domaćina. Kad od svog domaćina organizma, kristalizirati i ponašaju kao nežive materije. Za znanstvenike, jedno je sigurno - u svim oblicima reprodukciju živih organizama, genetski materijal (DNA) se prenosi na potomstvo. Istraživanja provedena u 2002 fizičara José Fernando Fontanari, Institut za fiziku São Carlos, objasniti da molekula DNK može biti samo molekula na ranoj Zemlji opirao proces za formiranje živih bića, i da DNK može pojavile jaka konkurencija s drugim kemijskim strukturama sposoban za reprodukciju sebe (Fioravanti, 2005).