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Video: Yuav ua li cas ua Acetocarmine?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Acetocarmine npaj (1% tov)
Dissolve 10 g carmine (Fisher C579-25) hauv 1 L ntawm 45% glacial acetic acid, ntxiv boileezers, thiab reflux rau 24 teev. Lim rau hauv cov fwj tsaus thiab khaws cia ntawm 4 ° C. Cov tshuaj no tuaj yeem khaws cia rau lub sijhawm ntev.
Dhau li ntawm no, koj yuav ua li cas thiaj ua tau Acetocarmine?
Tsis yog hlau version
- Tshav kub ntawm 45% acetic acid (45ml glacial acetic acid / 55ml ntawm distilled dej) rau boil.
- Ntxiv 0.5g ntawm Carmine thiab txuas ntxiv cua sov rau 15-20 feeb thaum stirring.
- Txias resulting tov.
- Lim kom tshem tawm cov dej nag.
Tom qab ntawd, lo lus nug yog, Acetocarmine yog dab tsi? Kev txhais ntawm acetocarmine .: saturated tov ntawm carmine nyob rau hauv 45 feem pua acetic acid siv tshwj xeeb tshaj yog rau cov sai staining ntawm tshiab unfixed chromosomes.
Yog li ntawd, vim li cas Acetocarmine siv hauv mitosis?
Stains yog siv hauv kev tshawb fawb microscopic txhawm rau txhim kho qhov sib txawv ntawm cov khoom siv lom neeg tshwj xeeb hauv cov qauv. Acetocarmine yog li stain siv kom stain nucleic acid hauv cov hlwb. Raws li acetocarmine tshwj xeeb-stain chromosomes sib nrug ntawm cytoplasm, nws tuaj yeem ua tau siv kom pom cov chromosomes hauv mitotic kev kawm.
Vim li cas lub nucleus tsuas yog siv Acetocarmine stain thaum lub sij hawm nuclear staining?
Acetocarmine muab xim liab rau chromosomes thaum nws yog staining . Los ntawm kev siv qhov no stain peb tuaj yeem soj ntsuam ntau theem ntawm chromosomes thaum cell faib. Xaiv xaiv stain DNA, Fuelgen cov tshuaj tiv thaiv yog siv nyob rau hauv kev tswj xyuas.
Pom zoo:
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
Vim li cas Acetocarmine siv hauv mitosis?
Acetocarmine yog siv los ua stain thiaj li ua rau cov hlwb uas raug mitosis kom meej meej thiab ze ze rau kev soj ntsuam yooj yim thiab kawm txog cell mitosis. Txhawm rau stain chromosomes kom lawv tuaj yeem pom tau yooj yim thiab peb tuaj yeem pom lawv morphology, qauv thiab tau suav lawv tus lej dhau ntawm metaphase thiab anaphase
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