Ib qab zib-phosphate qaum qaum (alternating grey-dark grey) koom ua ke nucleotides hauv DNA ua ntu zus. Cov pob txha qab zib-phosphate tsim cov qauv txheej txheem ntawm nucleic acids, suav nrog DNA thiab RNA. Cov pob txha no yog tsim los ntawm cov suab thaj thiab phosphate hloov pauv, thiab txhais cov kev taw qhia ntawm cov molecule.
Puas qab zib thiab phosphate tsim cov caj qaum DNA?
Ib pob txha phosphate yog ib feem ntawm DNA ob lub helix uas muab kev txhawb nqa rau cov molecule. DNA muaj ob txoj hlua uas cua ncig ib leeg zoo li tus ntaiv twisted. Txhua txoj hlua muaj lub nraub qaum ua los ntawm hloov cov suab thaj (deoxyribose) thiab phosphate pawg
Yuav ua li cas cov qab zib-phosphate caj qaum?
'sab' ntawm tus ntaiv (los yog cov kab DNA) yog lub npe hu ua qab zib-phosphate qaum. Cov pob txha no muaj alternating phosphate thiab qab zib pawg, nrog cov piam thaj molecule ntawm ib nucleotide txuas mus rau phosphate pawg ntawm cov nucleotide uas nyob ib sab. Txuas rau txhua lub suab thaj yog ib lub hauv paus nitrogenous.
Dab tsi muaj qab zib thiab pab pawg phosphate?
A nucleotide muaj cov piam thaj molecule (xws li ribose hauv RNA lossis deoxyribose hauv DNA) txuas rau pawg phosphate thiab cov hauv paus muaj nitrogen.
Qhov twg macromolecule muaj qab zib-phosphate qaum?
Ribonucleic acid (RNA) yog ib lub sijhawm ntev macromolecule tsim los ntawm nucleotides strung ua ke nrog qab zib-phosphate qaum qaum.
