2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
DNA yog ib qho polymer. Cov monomer units ntawm DNA yog nucleotides, thiab cov polymer hu ua " polynucleotide." Txhua nucleotide muaj 5-carbon qab zib (deoxyribose), nitrogen uas muaj cov hauv paus txuas nrog cov suab thaj, thiab pawg phosphate.
Dab tsi piav qhia txog tus qauv ntawm DNA?
DNA yog cov molecule uas tuav cov lus qhia rau kev loj hlob thiab kev loj hlob ntawm txhua yam nyob. Nws cov qauv tau piav qhia raws li ib ob-stranded helix tuav ua ke los ntawm kev sib koom ua ke ua ke. Lub hauv paus units ntawm DNA yog nucleotides. Cov nucleotides no muaj cov suab thaj deoxyribose, phosphate thiab puag.
Dab tsi yog cov qauv polymer ntawm DNA?
DNA muaj ob lub polymers ntev (hu ua strands) uas khiav hauv cov lus qhia sib txawv thiab tsim cov duab geometry ntawm ob lub helix. Cov monomers ntawm DNA hu ua nucleotides. Nucleotides muaj peb yam: lub hauv paus, qab zib (deoxyribose) thiab phosphate residue.
YPuas yog nucleotide polymer ntawm DNA?
Nucleotide
RNA thiab DNA yog cov polymers ua los ntawm ntev chains ntawm nucleotides. Lub 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.
Nucleotide qauv ntawm DNA yog dab tsi?
Txhua nucleotide muaj heterocyclic puag txuas los ntawm tsib-carbon qab zib (deoxyriboselos yog ribose) rau ib pawg phosphate (saib daim duab 4-1). DNA thiab RNA txhua tus muaj plaub lub hauv paus sib txawv (saib daim duab 4-2). Cov purines adenine (A) thiab guanine (G) thiab pyrimidine cytosine (C) muaj nyob hauv DNA thiab RNA.
Pom zoo:
Leej twg txoj cai piav qhia txog kev solubility ntawm cov roj hauv cov tshuaj?
Henry Txoj Cai: Lub solubility ntawm cov pa hauv cov kua yog ncaj qha proportional rau ib nrab siab ntawm cov pa saum cov kua. Leej twg piav qhia txog kev solubility ntawm cov roj hauv cov tshuaj? Henry Txoj Cai hais tias: Lub solubility ntawm cov roj hauv cov kua yog ncaj qha proportional rau lub siab ntawm cov roj ntawd saum npoo ntawm cov tshuaj.
Dab tsi ntawm cov hauv qab no piav qhia txog kev ua ntawm cov leeg digastric?
Muaj ob yam tseem ceeb lossis kev txav los ntawm cov leeg digastric: Qhib lub puab tsaig sab hauv - Cov leeg digastric depresses lub mandible, lossis lub puab tsaig qis, los ntawm rub nws. Pab hauv nqos - Thaum nqos, cov leeg digastric nce cov pob txha hyoid uas pab txav cov tshuaj hauv caj pas.
Vim li cas cov qauv sau ntawv thiaj li piav tau cov lus tseem ceeb?
Cov qauv sau ntawv tsis tu ncua (Qee lub sijhawm siv dav dav: ib qho tuaj yeem tso cov hlua ntev dua ntawm cov terminalslossis ib qho nonterminals yam tsis muaj lwm yam, ua cov lus yooj yim dua rau kev qhia thaum tseem txhais cov tib chav kawm ntawm hom lus.
Qhov kev piav qhia piav qhia txog lub cev tsis muaj zog ntawm tes?
Cov ntsiab lus hauv cov txheej txheem no (10) Cov lus piav qhia twg piav qhia qhov tsis muaj zog, xov paj hlwb? Nyuaj rau palpate, yuav ploj mus thiab tawm, yooj yim obliterated. Thaum piav qhia txog qhov tsis muaj zog ntawm tes tus kws saib xyuas neeg mob yuav tsum sau cov lus nug?
Qhov twg yog qhov zoo tshaj plaws los piav txog cov txheej txheem ntawm cov protein synthesis?
RNA txav DNA code mus rau ribosomes rau protein synthesis yog txoj hauv kev zoo tshaj los qhia txog cov txheej txheem ntawm cov protein synthesis…. Dab tsi xaus cov txheej txheem ntawm cov protein synthesis? Protein synthesis yog txheej txheem uas cov hlwb ua cov protein.
