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Koj xam GC li cas?
Koj xam GC li cas?

Video: Koj xam GC li cas?

Video: Koj xam GC li cas?
Video: koj xaiv tus zoo li cas 2024, Kaum ib hlis
Anonim

Dab tsi yog GC Cov ntsiab lus? GC cov ntsiab lus feem ntau yog xam raws li tus nqi feem pua thiab qee zaum hu ua G + C piv lossis GC - piv. GC -Cov ntsiab lus feem pua yog xam as Count(G + C)/Count(A + T + G + C) * 100%.

Kuj kom paub yog, koj ua li cas nrhiav GC cov ntsiab lus ntawm ib ntu?

Cov kauj ruam

  1. Ua raws li qhov sib lawv liag thiab sau cov lej ntawm cytosine (C) lossis guanine (G) nucleotides.
  2. Faib tus naj npawb ntawm cytosine thiab guanine nucleotides los ntawm tag nrho cov hauv paus khub nyob rau hauv ib theem zuj zus.

Tsis tas li ntawd, cov ntsiab lus GC siab yog dab tsi? Ua tsaug rau koj cov lus teb meej! Nws yog kuv nkag siab tias thaum siv cov GC cov ntsiab lus raws li ib txoj hauv kev los faib cov kab mob mus rau hauv Firmicute lossis Actinobacteria phylum 60% yog qhov txiav tawm. Tshaj 60% yog suav tias yog siab GC thiab yog li ntawd Actinobacteria, thiab qis dua 60% yog suav tias yog qis, thiab yog li Firmicute.

Koj ua li cas xam cov lus teb hauv GC?

Qhov dav qauv rau a teb yam rau GC yog thaj chaw ncov muab faib los ntawm nws cov concentration rau cov tshuaj tiv thaiv. Qee zaum, qhov siab ntawm lub ncov yog siv los ntawm thaj chaw. Tus txheeb ze teb yam (RRF) yog, ces, ib teb yam muab faib los ntawm lwm tus.

GC cov ntsiab lus txhais li cas?

Hauv molecular biology thiab noob caj noob ces, GC - ntsiab lus (los yog guanine-cytosine ntsiab lus ) yog Qhov feem pua ntawm nitrogenous hauv paus hauv DNA lossis RNA molecule uas yog guanine (G) lossis cytosine (C).

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