Video: Dab tsi yog qhov sib ntxiv ntawm DNA piv txwv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Complementary Txhais (Biology)
Yog li, rau piv txwv , cov ntxiv ntawm guanine yog cytosine vim hais tias yog lub hauv paus uas yuav ua ke nrog guanine; tus ntxiv ntawm cytosine yog guanine. Koj tseem yuav hais tias ntxiv ntawm adenine yog thymine, thiab vice versa.
Tsis tas li ntawd, dab tsi yog qhov sib ntxiv ntawm DNA?
npe Biochemistry. ob qho tib si ntawm ob chains uas ua ib tug ob helix ntawm DNA , nrog cov haujlwm sib xws ntawm ob txoj hlua khi tau tsim los ntawm ib khub ntawm ntxiv hauv paus. ib seem ntawm ib tug nucleic acid saw uas yog sib txuas mus rau lwm tus los ntawm ib theem ntawm lub hauv paus khub.
Tom qab ntawd, lo lus nug yog, dab tsi yog qhov sib ntxiv ntawm mRNA? Hauv mRNA , Uracil yog hloov rau thymine ua lub hauv paus complementary rau adenine. Txij thaum lwm tus txoj hlua ntawm DNA muaj cov hauv paus complementary rau tus qauv txoj hlua , cov mRNA muaj tib qhov sib lawv liag ntawm cov hauv paus rau saum txoj hlua ntawm DNA qhia saum toj no (nrog U hloov rau T), uas yog hu ua coding txoj hlua.
Tom qab, lo lus nug yog, dab tsi yog ib txoj hlua ntawm DNA?
DNA Strands . Qhov no mitochondrial DNA zoo li kab mob DNA - ib tug ntev, ncig daim DNA ua los ntawm ob strands ntawm DNA . A DNA strand yog ib tug ntev, nyias molecule-qhov nruab nrab tsuas yog hais txog ob nanometers (los yog ob billions ntawm ib 'meter') nyob rau hauv dav.
Dab tsi yog qhov sib ntxiv ntawm RNA?
DNA thiab RNA puag khub complementarity
| Nucleic Acid | Nucleobases | Base ntxiv |
|---|---|---|
| DNA | adenine (A), thymine (T), guanine (G), cytosine (C) | A = T, G≡C |
| RNA | adenine (A), uracil (U), guanine (G), cytosine (C) | A = U, G≡C |
Pom zoo:
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