Cov txheej txheem:
- Lub hom phiaj ntawm kev ua ntau qhov sib txuas ua ke yog dab tsi?
- Yuav ua li cas ntau qhov kev sib txuas ua ke pab hauv evolution?
- Puas yog ntau qhov sib txuas ua ke?
- Yuav ua li cas ntau qhov kev sib txuas ua ke tsim tawm?
![Vim li cas ntau qhov kev sib txuas ua ke? Vim li cas ntau qhov kev sib txuas ua ke?](https://i.boatexistence.com/preview/questions/18706543-why-multiple-sequence-alignment-j.webp)
Video: Vim li cas ntau qhov kev sib txuas ua ke?
![Video: Vim li cas ntau qhov kev sib txuas ua ke? Video: Vim li cas ntau qhov kev sib txuas ua ke?](https://i.ytimg.com/vi/1bkKkw0cy7w/hqdefault.jpg)
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Ntau qhov kev sib txuas ua ke muab cov ntaub ntawv ntau dua li kev sib koom ua ke txij li lawv qhia thaj chaw khaws cia hauv tsev neeg cov protein uas yog cov qauv tsim thiab ua haujlwm tseem ceeb.
Lub hom phiaj ntawm kev ua ntau qhov sib txuas ua ke yog dab tsi?
Muab cov txheej txheem lom neeg (RNA, proteins, DNA), lub hom phiaj ntawm MSA txoj kev yog txhawm rau ua kom cov kab ke hauv ib txoj hauv kev uas yuav cuam tshuam txog lawv cov kev hloov pauv, kev ua haujlwm lossis kev sib raug zoo (Daim duab 1).
Yuav ua li cas ntau qhov kev sib txuas ua ke pab hauv evolution?
Txoj kev sib tw yog siv rau ntau lub hom phiaj, suav nrog kev kwv yees ntawm cov qauv ntawm kev sib txawv, kev xaiv, lub sijhawm thiab hom kev hloov pauv hloov pauv, txheeb xyuas cov khoom ua haujlwm thiab kev txwv, thiab keeb kwm phylogenetic, tsuas yog sau npe rau ob peb.
Puas yog ntau qhov sib txuas ua ke?
Multiple Sequence Alignment (MSA) yog feem ntau qhov kev sib raug zoo ntawm peb lossis ntau dua cov kab ke lom neeg (protein lossis nucleic acid) ntawm qhov ntev zoo sib xwsLos ntawm cov zis, homology tuaj yeem suav tau thiab evolutionary kev sib raug zoo ntawm cov sequences kawm. … Cov cuab yeej MSA ceev heev uas tsom mus rau cov cheeb tsam hauv zos.
Yuav ua li cas ntau qhov kev sib txuas ua ke tsim tawm?
Cov Clusal Omega algorithm ua rau ntau qhov sib txuas ua ke los ntawm ua ntej tsim cov kev sib txuas ua ke siv txoj kev k-tuple Tom qab ntawd, cov kab sib txuas tau ua ke siv txoj kev mBed. Qhov no yog ua raws li k-txhais tau tias kev sib koom ua ke. Cov ntoo qhia txuas ntxiv yog tsim los siv UPGMA txoj kev.
Pom zoo:
Vim li cas kev sib txuas sib txuas yog qhov tseem ceeb?
![Vim li cas kev sib txuas sib txuas yog qhov tseem ceeb? Vim li cas kev sib txuas sib txuas yog qhov tseem ceeb?](https://i.boatexistence.com/preview/questions/18679282-why-reciprocal-lattice-is-important-j.webp)
Cov lattice reciprocal plays lub luag haujlwm tseem ceeb hauv kev tshawb fawb feem ntau ntawm cov qauv ntu, tshwj xeeb hauv kev xav ntawm kev sib txawv. Nyob rau hauv neutron thiab X-ray diffraction, vim yog Laue tej yam kev mob, qhov sib txawv ntawm cov khoom xa tuaj thiab cov duab hluav taws xob sib txawv ntawm cov siv lead uayog cov kab lattice vector .
Lub polymer twg muaj kev sib txuas ntawm kev sib txuas?
![Lub polymer twg muaj kev sib txuas ntawm kev sib txuas? Lub polymer twg muaj kev sib txuas ntawm kev sib txuas?](https://i.boatexistence.com/preview/questions/18696142-which-polymer-has-amide-linkage-j.webp)
Ntawm no, los ntawm cov kev xaiv muab Nylon-6, 6 yog cov polymer uas muaj kev sib txuas ntawm amide. Yog li, nylons tseem hu ua polyamides vim lawv cov yam ntxwv amide pawg hauv cov pob txha caj qaum. Amide pawg nyob rau hauv nylon molecules yog heev polar, thiab tsim hydrogen bonding ib leeg .
Puas kev sib txuas lus tsis zoo kuj yog ib qho khoom ntawm kev sib txuas lus?
![Puas kev sib txuas lus tsis zoo kuj yog ib qho khoom ntawm kev sib txuas lus? Puas kev sib txuas lus tsis zoo kuj yog ib qho khoom ntawm kev sib txuas lus?](https://i.boatexistence.com/preview/questions/18701668-does-miscommunication-is-also-a-product-of-communication-j.webp)
Kev sib txuas lus tsis zoo ("mis" + "kev sib txuas lus") txhais tau tias yog tsis ua tiav kev sib txuas lus kom txaus thiab zoo Nws yog ib hom kev sib txuas lus teeb meem. … Hom kev sib txuas lus tsis zoo tam sim no tuaj yeem raug cais raws li lub hauv paus ntawm kev tsis sib haum xeeb txog txoj cai sib txuas lus .
Leej twg tsim tus qauv kev sib txuas lus ntawm kev sib txuas lus?
![Leej twg tsim tus qauv kev sib txuas lus ntawm kev sib txuas lus? Leej twg tsim tus qauv kev sib txuas lus ntawm kev sib txuas lus?](https://i.boatexistence.com/preview/questions/18745726-who-developed-the-interactional-model-of-communication-j.webp)
Tus qauv kev sib txuas lus ntawm kev sib txuas lus tsim los ntawm Wilbur Schramm ua raws li tus qauv linear. Schramm ntxiv peb yam tseem ceeb rau Shannon thiab Weaver qauv. Ua ntej, Schramm tau txheeb xyuas ob txheej txheem ntawm kev sib txuas lus:
Nyob rau hauv ib qho kev tsis sib haum xeeb pn kev sib tshuam cov kev sib tshuam tam sim no ntawm qhov sib npaug yog?
![Nyob rau hauv ib qho kev tsis sib haum xeeb pn kev sib tshuam cov kev sib tshuam tam sim no ntawm qhov sib npaug yog? Nyob rau hauv ib qho kev tsis sib haum xeeb pn kev sib tshuam cov kev sib tshuam tam sim no ntawm qhov sib npaug yog?](https://i.boatexistence.com/preview/questions/18769712-in-an-unbiased-pn-junction-the-junction-current-at-equilibrium-is-j.webp)
Nyob rau hauv qhov tsis ncaj ncees PN-kho qhov kev sib tshuam tam sim no ntawm qhov sib npaug yog zero, vim tias sib npaug tab sis cov neeg nqa khoom hla hla kev sib tshuam . Thaum pn kev sib tshuam tsis ncaj ncees qhov kev sib tshuam tam sim no ntawm qhov sib npaug yog?