Video: Adenine khi rau dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Muaj nuj nqi. Adenine yog ib qho ntawm ob lub purine nucleobases (lwm qhov yog guanine) siv los tsim cov nucleotides ntawm nucleic acids. Hauv DNA, adenine sib txuas mus rau thymine los ntawm ob daim ntawv cog lus hydrogen los pab kom stabilizing cov qauv nucleic acid. Hauv RNA, uas yog siv rau kev tsim cov protein, adenine sib txuas rau uracil.
Kuj paub, adenine tuaj yeem ua khub nrog cytosine?
Qhov no yog vim qhov Adenine (purine puag) khub Tsuas yog nrog Thymine (pyrimidine puag) thiab tsis nrog Cytosine (purine puag). Lub hauv paus khub ua raws li Erwin Chargaff cov cai. Nws yog lub hauv paus ntsiab lus ntawm noob caj noob ces ntawm molecular biology uas peb txhua tus kawm. Qhov ntawd yog Adenine bonds nrog thymine thiab guanine nrog cytosine.
Ib yam li ntawd, adenine yog dab tsi hauv biology? adenine (A-deh-neen) Ib qho tshuaj sib xyaw uas siv los ua ib qho ntawm lub tsev thaiv ntawm DNA thiab RNA. Nws kuj yog ib feem ntawm ntau yam khoom hauv lub cev uas muab lub zog rau cov hlwb. Adenine yog ib hom purine.
Ntawm no, dab tsi adenine khub nrog hauv tRNA?
Ib qho piv txwv zoo ntawm qhov no yog ib yam dab tsi hu ua wobble hypothesis, uas piav qhia vim li cas ib leeg tRNA uas codes rau anticodon ua tau khi rau ntau cov amino acid codons. Purines khub Nrog pyrimidines: adenine sib nrog uracil (A khub nrog U) thiab guanine khub nrog cytosine (C khub nrog G).
Puas yog adenine thiab adenosine tib yam?
Adenosine . Txawm hais tias tib neeg nyiam xa mus rau nucleotides los ntawm cov npe ntawm lawv cov hauv paus, adenine thiab adenosine tsis yog cov ib yam yam. Adenine yog lub npe ntawm purine puag. Adenosine yog qhov loj dua nucleotide molecule ua los ntawm adenine , ribose lossis deoxyribose, thiab ib lossis ntau pawg phosphate.
Pom zoo:
Dab tsi ntawm pipette yog volumetric thiab nws siv rau dab tsi?
Lub volumetric pipette, noob pipette, lossis lub plab pipette tso cai rau kev ntsuas qhov tseeb (rau plaub qhov tseem ceeb) ntawm qhov ntim ntawm cov tshuaj. Volumetric pipettes feem ntau yog siv rau hauv analytical chemistry los ua cov kev daws teeb meem los ntawm lub hauv paus Tshuag thiab npaj cov kev daws teeb meem rau titration
S sawv rau dab tsi thiab dab tsi tshwm sim hauv theem no?
S theem sawv rau 'Synthesis'. Qhov no yog theem thaum DNA replication tshwm sim. The G2 stage stands for 'GAP 2'
Dab tsi yog cov reagents xav tau rau PCR thiab dab tsi yog qhov ua haujlwm ntawm txhua tus?
Muaj tsib yam tshuaj reagents, lossis cov khoom xyaw, siv hauv PCR: qauv DNA, PCR primers, nucleotides, PCR tsis thiab Taq polymerase. Primers feem ntau yog siv nyob rau hauv khub, thiab DNA ntawm ob lub primers yog amplified thaum lub sij hawm PCR cov tshuaj tiv thaiv
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog qhov tseem ceeb tshaj plaws uas yuav tsum muaj rau cov kua dej ntws hauv cov kav dej Dab tsi lwm yam cuam tshuam rau cov dej ntws?
Thaum ib qho kev quab yuam sab nraud yog exerted rau ntawm cov kua uas muaj, qhov tshwm sim siab yog kis sib npaug thoob plaws hauv cov kua. Yog li txhawm rau kom dej ntws, dej xav tau qhov sib txawv siab. Cov kav dej kuj tuaj yeem cuam tshuam los ntawm cov kua dej, cov yeeb nkab loj, qhov kub thiab txias (cov kav dej khov), cov kua dej ntom ntom