Dab tsi yog qhov kev hloov pauv hloov pauv?
Dab tsi yog qhov kev hloov pauv hloov pauv?

Video: Dab tsi yog qhov kev hloov pauv hloov pauv?

Video: Dab tsi yog qhov kev hloov pauv hloov pauv?
Video: Xav Hloov Pauv Lub Neej Kom Zoo Tshaj Qub 2024, Kaum ib hlis
Anonim

Hloov pauv , nyob rau hauv molecular biology, hais txog ib lub ntsiab lus kev hloov pauv nyob rau hauv deoxyribonucleic acid (DNA), qhov twg ib leeg (ob lub nplhaib) purine hloov rau ib (ib lub nplhaib) pyrimidine, los yog vice versa.

Ib yam li ib tug yuav nug, dab tsi yog qhov kev hloov pauv hloov pauv?

Kev hloov pauv hloov yog ib hom ntsiab lus tshwj xeeb kev hloov pauv , ib qho uas ib zaug purine hloov pauv rau pyrimidine lossis vice versa. Raws li qhov tshwm sim ntawm a kev hloov pauv hloov , cov hloov pauv Piv txwv li, txoj hauj lwm hauv cov noob yuav muaj ib qho adenine uas nws muaj thymine lossis cytosine.

Dab tsi yog qhov txawv ntawm kev hloov pauv hloov pauv thiab kev hloov pauv hloov pauv? Kev hloov pauv yog kev hloov pauv ntawm ob lub nplhaib purines (A G) lossis ntawm ib lub nplhaib pyrimidines (C T): lawv yog li koom nrog cov hauv paus ntawm cov duab zoo sib xws. Kev hloov pauv yog kev hloov pauv ntawm purine rau pyrimidine hauv paus, uas yog li kev sib pauv ntawm ib lub nplhaib thiab ob lub nplhaib.

Hauv qhov no, qhov twg yog qhov piv txwv ntawm kev hloov pauv hloov pauv?

Hloov pauv kev hloov pauv yog hais txog ib qho purine hloov los ntawm pyrimidine, los yog vice versa; rau piv txwv , cytosine, pyrimidine, yog hloov los ntawm adenine, purine. Kev hloov pauv tuaj yeem yog qhov tshwm sim ntawm qhov sib ntxiv ntawm lub hauv paus, hu ua kev ntxig, lossis tshem tawm ntawm lub hauv paus, tseem hu ua deletion.

Dab tsi ua rau kev hloov pauv hloov pauv?

Kwv yees li ob ntawm peb ib leeg nucleotide polymorphisms (SNPs) yog kev hloov pauv . Kev hloov pauv tuaj yeem yog ua rau los ntawm oxidative deamination thiab tautomerization.

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