Muaj pes tsawg qhov kev hloov pauv hloov tau?
Muaj pes tsawg qhov kev hloov pauv hloov tau?

Video: Muaj pes tsawg qhov kev hloov pauv hloov tau?

Video: Muaj pes tsawg qhov kev hloov pauv hloov tau?
Video: Hloov tau yam no ces koj muaj nyiaj 100% 2024, Kaum ib hlis
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Hais txog qhov no, vim li cas kev hloov pauv hloov pauv ntau dua?

A kev hloov pauv swaps ib tug purine rau ib tug purine los yog ib tug pyrimidine rau ib tug pyrimidine, thaum lub sij hawm ib tug transversion swaps ib tug purine rau ib tug pyrimidine (los yog vice versa). Qhov tseeb muaj ob zaug ntau qhov kev hloov pauv tau zoo li kev hloov pauv . Kev hloov pauv hloov pauv ntau dua yooj yim generated vim cov duab ntawm cov molecules.

Qhov thib ob, 4 hom kev hloov pauv ntawm cov ntsiab lus yog dab tsi? Nco ntsoov, koj DNA yog tsim los ntawm plaub Base: adenine, thymine, guanine thiab cytosine. Kev hloov pauv hauv kev txiav txim thiab tus lej ntawm cov hauv paus no tuaj yeem ua rau txawv point mutations , suav nrog frameshift, ntsiag to, tsis muaj tseeb thiab missense.

Yog li ntawd, qhov kev hloov pauv hloov pauv yog dab tsi?

Kev hloov pauv , nyob rau hauv genetics thiab molecular biology, hais txog a point kev hloov uas hloov cov purine nucleotide mus rau lwm qhov purine (A ↔ G), lossis pyrimidine nucleotide rau lwm pyrimidine (C ↔ T). Kwv yees li ob ntawm peb ib leeg nucleotide polymorphisms (SNPs) yog kev hloov pauv.

Puas yog kev hloov pauv lossis kev hloov pauv ntau dua?

Kev hloov pauv tsawg dua feem ntau tshaj kev hloov pauv kev hloov pauv - lwm hom kev hloov pauv hloov pauv, uas ib qho ntawm ob lub purines lossis pyrimidines hloov pauv rau lwm qhov - vim tias tiam ntawm kev hloov pauv Thaum lub sij hawm replication yuav tsum tau ntau dua distortion ntawm ob helix dua li qhov

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