Video: DNA deoxyribonucleic acid encode cov ntaub ntawv li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
A) Cov proteins raws qhov ntev ntawm DNA molecules encode tus cov ntaub ntawv rau tsim tag nrho cov cell lwm molecules. Cov DNA molecule yog tsim los ntawm ntau cov amino kua qaub koom ua ke los tsim cov protein ua haujlwm. C) Nyob rau hauv tus naj npawb ntawm txhua qhov sib txawv nucleotide.
Ib yam li ntawd, DNA khaws cov ntaub ntawv li cas?
DNA khw lom cov ntaub ntawv Nyob rau hauv sequences ntawm plaub lub hauv paus ntawm nucleic acid - adenine (A), thymine (T), cytosine (C) thiab guanine (G) - uas yog strung raws ribbons ntawm qab zib - phosphate molecules nyob rau hauv cov duab ntawm ob helix. Noj tag nrho, no pob ntawm DNA ua hauj lwm raws li nws tus tswv daim ntawv qhia txog caj ces.
Tsis tas li ntawd, cov ntaub ntawv DNA siv los ua cov protein li cas? Ua ntej, enzymes nyeem cov cov ntaub ntawv hauv a DNA molecule thiab transcript nws mus rau hauv ib tug intermediary molecule hu ua messenger ribonucleic acid, los yog mRNA. Tom ntej no, lub cov ntaub ntawv muaj nyob rau hauv mRNA molecule yog txhais ua "lus" ntawm amino acids, uas yog lub tsev blocks ntawm cov proteins.
Yog li, dab tsi yog qhov sib ntxiv ntawm DNA?
Hauv biology, tshwj xeeb hauv cov ntsiab lus ntawm noob caj noob ces thiab DNA , ntxiv txhais tau tias polynucleotide txoj hlua ua ke nrog tus thib ob polynucleotide txoj hlua muaj nitrogenous puag ib theem zuj zus uas yog rov qab ntxiv , los yog khub, ntawm lwm tus txoj hlua.
Vim li cas DNA yog acid?
Lub acidity ntawm DNA yog tshwm sim los ntawm muaj cov phosphate pawg uas yog lawv tus kheej acidic . Ua ntej tshaj plaws, DNA Tsis yog tsim los ntawm "nucleotide bases" tab sis ntawm nucleotides. Cov no suav nrog cov piam thaj uas khi rau ib qho ntawm 4 nucleobases Adenine, Cytosine, Guanine lossis Thymine (Uracil hauv RNA) thiab pab pawg phosphate.
Pom zoo:
Cov ntaub ntawv dab tsi ua rau cov ntawv sau npe hauv cov tshuaj formula muab?
Cov ntawv lossis cov ntawv uas sawv cev rau lub ntsiab lus hu ua nws lub cim atomic. Cov lej tshwm sim raws li cov ntawv sau npe hauv cov qauv tshuaj qhia txog tus lej ntawm atoms ntawm lub caij tam sim ua ntej subscript. Yog tias tsis muaj subscript tshwm sim, ib qho atom ntawm lub ntsiab yog tam sim no
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
Quantile. txhua chav kawm muaj cov yam ntxwv sib npaug. Ib qho kev faib tawm ntau yog zoo haum rau cov ntaub ntawv faib tawm. Quantile muab tib tus lej ntawm cov ntaub ntawv muaj nuj nqis rau txhua chav kawm
Cov yam ntxwv ntawm cov ntaub ntawv twg yog qhov ntsuas ntawm tus nqi uas cov ntaub ntawv muaj nuj nqis heev?
Variation: Ib qho kev ntsuas ntawm tus nqi uas cov ntaub ntawv muaj nuj nqis sib txawv. ? Kev faib tawm: Cov xwm txheej lossis cov duab ntawm kev sib kis ntawm cov ntaub ntawv hla ntau qhov tseem ceeb (xws li tswb-puab). ? Outliers: Cov qauv piv txwv uas nyob deb heev ntawm feem ntau ntawm lwm cov qauv nqi
Thaum muab piv cov qauv sau rau ib tus neeg raug liam cov ntaub ntawv lub hnub nyoog sib txawv ntawm cov ntaub ntawv yuav tsum tsis pub tshaj kaum ob lub hlis?
Thaum piv cov qauv sau rau tus neeg raug liam? cov ntaub ntawv, lub hnub nyoog sib txawv ntawm cov ntaub ntawv yuav tsum tsis pub ntau tshaj rau rau kaum ob lub hlis. Tus lej txaus ntawm tus qauv yog qhov tseem ceeb rau kev txiav txim siab qhov tshwm sim ntawm kev sib piv
Dab tsi yog cov cuab yeej lossis cov ntaub ntawv uas tus Kws Tshawb Fawb xav tau los txheeb xyuas cov ntaub ntawv nug?
Cov ntaub ntawv raug nug hauv chav kuaj ua txhaum cai yog nruab nrog lub tshuab ntsuas ntsuas, ntsuas cov duab digital, infrared thiab ultraviolet lub teeb ci, cov cuab yeej tshuaj ntsuam video thiab cov cuab yeej tshwj xeeb suav nrog cov khoom siv hluav taws xob tshawb pom electrostatic (EDD) thiab cov khoom siv los ua chemistry