Video: Yuav ua li cas microarray ua?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Rau ua a microarray tsom xam, mRNA molecules feem ntau yog sau los ntawm ob qho tib si kev sim thiab cov qauv siv. Ob qho piv txwv yog tom qab ntawd sib xyaw ua ke thiab tso cai rau khi rau qhov microarray swb. Cov txheej txheem uas cDNA molecules khi rau DNA soj ntsuam ntawm tus swb yog hu ua hybridization.
Ua kom pom qhov no, dab tsi yog microarray thiab nws ua haujlwm li cas?
Ib DNA microarray (tseem hu ua DNA nti lossis biochip) yog ib qho kev sib sau ntawm cov kab mob DNA microscopic txuas rau ntawm qhov chaw. Cov kws tshawb fawb siv DNA microarrays ntsuas cov theem qhia ntawm ntau cov noob ib txhij lossis rau genotype ntau thaj tsam ntawm ib lub genome.
Ib yam li ntawd, cov txheej txheem microarray siv sijhawm ntev npaum li cas? Keeb Kwm teb: Lub sij hawm npaum li cas nws coj los ua DNA microarray ? Nws feem ntau siv teev mus rau ib feem zoo ntawm ib hnub nyob ntawm qhov tshwj xeeb DNA ib ntus thiab raws tu qauv siv. Lub sijhawm siv cov kauj ruam : PCR ntawm DNA qauv kom nce tus nqi piv txwv - xav tau ntau yam "thermocycling cov kauj ruam " feem ntau noj 2-4 teev.
Ib yam li ntawd, koj tuaj yeem nug, ua li cas microarray ua tiav?
Ib yam microarray Qhov kev sim cuam tshuam nrog kev sib xyaw ntawm mRNA molecule rau DNA qauv los ntawm qhov nws yog keeb kwm. Ntau cov qauv DNA yog siv los tsim ib qho array . Tus nqi ntawm mRNA khi rau txhua qhov chaw ntawm lub array qhia txog theem ntawm ntau yam genes. Tus lej no yuav khiav ntau txhiab.
Microarray qhia koj li cas?
Microarrays Kuj tseem siv tau los kawm txog qhov twg qee cov noob tau qhib lossis tawm hauv cov hlwb thiab cov ntaub so ntswg. Hauv qhov no, es tsis txhob cais DNA ntawm cov qauv, RNA (uas yog daim ntawv teev cov DNA) raug cais thiab ntsuas. Niaj hnub no, DNA microarrays yog siv nyob rau hauv kev soj ntsuam kuaj mob rau tej yam kab mob.
Pom zoo:
Yuav ua li cas yuav Yellowstone eruption?
Hais txog kev tawg loj, Yellowstone tau ntsib peb ntawm 2.08, 1.3, thiab 0.631 lab xyoo dhau los. Qhov no tawm mus rau qhov nruab nrab ntawm 725,000 xyoo ntawm kev tawg. Txawm hais tias lwm qhov kev puas tsuaj loj ntawm Yellowstone tuaj yeem ua tau, cov kws tshawb fawb tsis ntseeg tias ib tus yuav tshwm sim
Yuav ua li cas koj txiav txim siab npaum li cas ntawm cov kua qaub uas yuav tsum tau neutralize lub hauv paus?
Kev daws qhov teeb meem Acid-Base Neutralization Kauj Ruam 1: Muab xam cov moles ntawm OH-. Molarity = moles / ntim. moles = Molarity x Volume. moles OH- = 0.02 M/100 milliliters. Kauj ruam 2: Xam qhov ntim ntawm HCl xav tau. Molarity = moles / ntim. Volume = moles/molarity. Volume = moles H+/0.075 Molarity
Yuav ua li cas yog vim li cas vim li cas lub epigenome hloov?
Kev ua neej nyob thiab ib puag ncig (xws li kev haus luam yeeb, noj zaub mov thiab kab mob sib kis) tuaj yeem ua rau tus neeg muaj kev ntxhov siab uas ua rau muaj tshuaj lom neeg. Cov lus teb no, dhau los, feem ntau ua rau muaj kev hloov pauv hauv epigenome, qee qhov tuaj yeem ua rau puas tsuaj
Yuav ua li cas yog cov structural units uas ua ionic compounds thiab yuav ua li cas lawv hu ua?
Rau binary ionic compounds (ionic compounds uas muaj tsuas yog ob hom ntawm cov ntsiab lus), cov tebchaw muaj npe los ntawm kev sau lub npe ntawm cov cation ua ntej tom qab lub npe ntawm anion. Piv txwv li, KCl, ib qho ionic compound uas muaj K + thiab Cl-ions, yog lub npe hu ua potassium chloride
Yuav ua li cas yog qhov tshwm sim uas ib tug poj niam dig muag xim uas yuav ib tug txiv neej uas tsis pom kev zoo yuav muaj xim dig muag me nyuam?
Yog tias tus poj niam uas muaj lub zeem muag zoo li no (heterozygous rau qhov muag tsis pom xim) yuav ib tug txiv neej ib txwm muaj (XY), cov xeeb ceem hauv qab no tuaj yeem xav tau hauv F2 tiam: ntawm cov ntxhais, 50% yog ib txwm muaj thiab 50% yog cov neeg nqa khoom rau cov kab mob; ntawm cov tub, 50% yog xim dig muag thiab 50% yog qhov pom kev zoo