Video: DNA thiab RNA muaj dab tsi hauv cov lus nug sib xws?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Dab tsi puas DNA thiab RNA muaj sib xws ? - Ob leeg muaj deoxyribose. - Ob leeg yog tsim los ntawm nucleotides. - Ob qho tib si ua ob lub helices.
Yog li, DNA thiab RNA muaj dab tsi zoo sib xws?
Ob leeg DNA thiab RNA muaj plaub lub hauv paus nitrogenous txhua-peb ntawm lawv sib koom (Cytosine, Adenine, thiab Guanine) thiab ib qho sib txawv ntawm ob ( RNA muaj Uracil thaum DNA muaj Thymine). Ib qho tseem ceeb tshaj plaws zoo sib xws ntawm DNA thiab RNA yog lawv ob leeg muaj ib lub pob txha phosphate uas cov hauv paus txuas.
Tom qab ntawd, lo lus nug yog, RNA thiab DNA zoo sib xws li cas lawv txawv quizlet? RNA yog txawv los ntawm DNA yog peb txoj kev: (1) qab zib hauv RNA yog ribose tsis dioxyribose; (2) RNA feem ntau yog ib leeg-stranded thiab tsis ob-stranded; thiab (3) RNA muaj uracil nyob rau hauv qhov chaw ntawm thymine. DNA yog "master plan." RNA yog "daim ntawv pov tseg" lossis daim ntawv qhia.
Tsis tas li ntawd, DNA thiab RNA zoo sib xws li cas?
RNA yog qee yam zoo sib xws rau DNA ; lawv ob leeg yog nucleic acids ntawm nitrogen-muaj hauv paus koom nrog qab zib-phosphate qaum qaum. DNA muaj Thymine, qhov twg as RNA muaj Uracil. RNA nucleotides suav nrog qab zib ribose, tsis yog Deoxyribose uas yog ib feem ntawm DNA.
RNA polymerase paub li cas lub noob nyob qhov twg?
Cov cim qhia no yog cov kab ke tshwj xeeb hauv DNA uas tau lees paub los ntawm cov RNA polymerase los yog los ntawm cov protein uas pab RNA polymerase txiav txim siab qhov twg nws yuav tsum khi DNA kom pib transcription. DNA sequence ntawm uas RNA polymerase khi kom pib transcription yog hu ua tus txhawb nqa.
Pom zoo:
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