Video: Cov protein twg yuav tsum tau ua rau kev txiav txim siab ntawm txoj hmoo tom qab hauv Drosophila embryo?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Bicoid
Nyob rau hauv no txoj kev, yuav ua li cas anterior thiab posterior ncej txiav txim nyob rau hauv ib tug embryo?
Cov sab hauv - tom qab axis ua lub embryo yog li no teev los ntawm peb pawg ntawm cov noob: cov uas txhais cov sab hauv organize center, cov uas txhais cov tom qab koom chaw, thiab cov uas txhais lub davhlau ya nyob twg ciam teb cheeb tsam.
yog hunchback yog niam txiv nyhuv? Bicoid thiab Hunchback yog cov niam txiv nyhuv uas yog qhov tseem ceeb tshaj plaws rau kev ua qauv ntawm qhov chaw sab hauv (lub taub hau thiab thorax) ntawm Drosophila embryo. Nanos thiab Caudal yog niam txiv nyhuv uas yog ib qho tseem ceeb nyob rau hauv tsim ntawm ntau posterior plab plab ntu ntawm Drosophila embryo.
Tom qab ntawd, ib tug kuj yuav nug, nyob rau hauv dab tsi kev txiav txim ua segmentation noob muaj nuj nqi nyob rau hauv Drosophila?
Hauv Drosophila , segmentation noob muaj nuj nqi nyob rau hauv ib tug sequential yam hauv qab no xaj : A. gap, ntu-polarity, khub-txoj cai.
Bicoid gene ua dab tsi?
Bicoid yog ib qho ntawm ob peb cov proteins uas khi ob qho tib si DNA thiab RNA. Nws tswj kev hloov pauv ntawm RNA thiab kev txhais ntawm DNA.
Pom zoo:
Yuav siv txoj hauv kev twg los txiav txim qhov purity ntawm txhua yam ntawm koj cov khoom uas tau rov qab los?
Cov txheej txheem tshuaj yooj yim tshaj plaws suav nrog gravimetry thiab titration. Kuj tseem muaj ntau txoj kev teeb pom kev zoo los yog spectroscopic, xws li UV-VIS spectroscopy, nuclear magnetic resonance thiab infrared spectroscopy. Cov txheej txheem chromatographic, xws li roj chromatography thiab kua chromatography, kuj tseem siv tau
Qhov twg hauv qab no yuav tsum tau ntsib rau kev sib tsoo txoj kev xav ntawm cov tshuaj tiv thaiv tus nqi tuav?
Qhov twg hauv qab no yuav tsum tau ntsib rau kev sib tsoo txoj kev xav ntawm cov tshuaj tiv thaiv tus nqi tuav? - Lub reacting molecules yuav tsum sib tsoo nrog ib leeg. - Cov molecules yuav tsum sib tsoo nyob rau hauv ib qho kev taw qhia uas tuaj yeem ua rau rov kho cov atoms. -Cov reacting molecules yuav tsum sib tsoo nrog lub zog txaus
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
Lub zog twg yog qhov muaj feem cuam tshuam tshaj plaws hauv kev txiav txim siab tertiary qauv ntawm cov protein?
Lub tertiary qauv ntawm ib tug protein yog peb seem ntawm cov protein. Disulfide bonds, hydrogen bonds, ionic bonds, thiab hydrophobic kev sib cuam tshuam tag nrho cov cuam tshuam rau cov qauv ntawm cov protein
Vim li cas nws tseem ceeb heev uas yuav tsum xav txog ntau yam thaum txiav txim siab cov hauv paus hniav ntawm cov kab zauv polynomial?
Piv txwv li, tus naj npawb ntawm lub sij hawm ib tug muab polynomial sib npaug muaj ib lub hauv paus ntawm ib tug muab point yog lub multiplicity ntawm lub hauv paus. Qhov kev xav ntawm ntau qhov tseem ceeb yog qhov tseem ceeb kom suav tau kom raug yam tsis muaj kev qhia tshwj xeeb (piv txwv li, ob lub hauv paus suav ob zaug). Li no cov lus qhia, ' suav nrog ntau ntau'