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Biology Did you know that ... The number of chromosomes is generally constant in each species? Not because a living being is great that he has more chromosomes. The Drosophila melanogaster (fruit fly) was the first living organism to have its chromosome number given - eight. This led them to believe that the lower the living organism less chromosomes, the larger, more chromosomes. With the genome study this idea was being disregarded because it was realized that this relationship was not seen in the observations made in different organisms. Within the organisms of the same species resemble 99.9% of its genome. Only 0.1% in different individuals varies depending on the combination of the parental genomes. Did you know that ... There are about three billion chemical letters in the genome? If this text were read at the rate of one word per second for eight hours a day and on all days of the week, it would take a century for the reading was completed. The human genome has a size of 800 Bibles. Scanned, would fit in a single DVD. Did you know that ... If all the DNA of a person being stretched, you could make a round trip to the sun 600 times. The ingenious DNA molecule is able to replicate. This action occurs when the cell is in the S phase of interphase, that is, at the time of synthesis prior to cell division. The doubling of semiconservative DNA is called, this is because each strand of the DNA molecule (original) serves as a template for the formation of two new ones. Thus, half of the new molecule formed is in fact half the original and the new half. This process is essential for life, explaining the great similarity between the different generations of a species, since the set of DNA that an individual has remained almost unchanged when transferred from parents to children. For cloning, the DNA bill with the help of enzyme catalyzing DNA polymerase that after the breaking of hydrogen bonds with consequent separation of the two strands of DNA into action. It acts as a guide, pairing the nitrogenous bases. The story is not over ... RNA enters the scene ... Ribonucleic acid (RNA) is found in both the nucleus and the cytoplasm of the cell. Has in its training phosphoric acid, a pentose sugar ribose and the nitrogenous bases: adenine and guanine (purine bases), cytosine and uracil (pyrimidine bases). As in the DNA, the pentose sugar ribose binds to a nitrogenous base releasing a molecule of water, phosphoric acid and the sugar ribose, also the release of a water molecule, we then the RNA nucleotide or ribonucleotide. DNA: the long chain of life
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Biologija Jeste li znali da ... Broj kromosoma općenito je konstanta u svake vrste? Ne, jer živo biće je super da ima više kromosoma. Drosophila melanogaster (voćna muha) bio je prvi živi organizam ima svoj broj kromosoma dao - osam. To ih je navelo na pomisao da je manja živi organizam manje kromosomi, veći, kromosomi. Uz genoma studiji ova ideja je zanemarit jer je shvatio da taj odnos nije bio viđen u zapažanjima u različitim organizmima. Unutar organizme iste vrste nalikuju 99,9% svog genoma. Samo 0,1% u različitim pojedincima varira ovisno o kombinaciji roditeljskog genoma. Jeste li znali da ... Postoji oko tri milijarde kemijskih slova u genomu? Ako ovaj tekst pročitali su po stopi od jedne riječi u sekundi za osam sati dnevno, a za sve dane u tjednu, da bi se cijelo stoljeće za čitanje je završena. Ljudski genom ima veličinu od 800 Biblije. Skenirani, mogao bi stati u jedan DVD. Jeste li znali da ... Ako sve DNK osoba koje se protezala, mogli bi povratno putovanje na sunce 600 puta. Genijalni molekula DNK u stanju ponoviti. Ova akcija se događa kada je stanica u S fazi međupovršini, koji je, u vrijeme sinteze prije diobe stanica. Udvostručenje semiconservative DNK se zove, to je zato jer svaka nit DNK molekule (original) služi kao predložak za stvaranje dviju novih. Dakle, polovica nove molekule formirana je zapravo polovica izvorne i novi poluvrijeme. Ovaj proces je bitan za život, objašnjava veliku sličnost između različitih generacija neke vrste, od seta DNA koje pojedinac ostao je gotovo nepromijenjen kada se prenose s roditelja na djecu. Za kloniranja, DNA Bill uz pomoć enzima katalizira DNA polimeraze da nakon lomljenja vodikovih veza s posljedičnim razdvajanje dviju niti DNA u akciji. On djeluje kao vodič, uparivanje dušikom baze. Priča nije gotova ... RNK ulazi na scenu ... Ribonukleinska kiselina (RNK) nalazi se u oba jezgri i citoplazmi stanice. Je li u svojoj kiseline trening fosforne, pentose šećera Riboza i dušičnih baze: adenin i guanin (purinskih baza), citozin i uracil (pirimidinske baze). Kao što je u DNA, pentose šećera riboza veže na dušičnih baza pušta molekule vode, fosforne kiseline i šećera Riboza, također oslobađanje molekula vode, a zatim smo RNA nukleotida ili ribonucleotide. DNA: dugi lanac života