Video: Koj xav tias DNA yuav zoo li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov DNA yuav zoo li ib tug dawb, pos huab los yog nplua stringy khoom. DNA yog tsis pom raws li ib leeg strand rau qhov muag liab qab, tab sis thaum ntau txhiab threads ntawm DNA yog tam sim no, koj yuav muaj peev xwm saib cov pawg loj ntawm threads ntawm DNA.
Xav txog qhov no, DNA zoo li cas thaum muab rho tawm?
A. Deoxyribonucleic acid rho tawm los ntawm cov hlwb tau ntau yam piav raws li zoo li strands ntawm mucus; limp, nyias, dawb noodles; los yog ib lub network ntawm muag heev, limp fibers. Nyob rau hauv ib lub microscope, paub ob-helix molecule ntawm DNA tuaj yeem pom.
Tsis tas li ntawd, vim li cas koj thiaj pom DNA koj rho tawm? Cov kws tshawb fawb kawm DNA rau ntau yam: Lawv ua tau xyuas seb cov lus qhia khaws cia hauv li cas DNA pab koj lub cev ua haujlwm zoo. Thaum lub sij hawm a DNA rho tawm , ib tug detergent yuav ua rau lub cell pop qhib, los yog lyse, thiaj li hais tias tus DNA tso rau hauv kev daws teeb meem.
Kuj paub, DNA zoo li cas cuam tshuam txog qhov koj paub txog cov qauv tshuaj ntawm DNA rau qhov koj tau pom hnub no?
Qhia qhov koj paub txog cov qauv tshuaj ntawm DNA rau qhov koj tau pom hnub no . Nws zoo li dawb, nyias fibers nyob rau hauv ib pawg. Vim DNA tuaj nyob rau hauv ntev strands, Kuv muaj peev xwm txheeb xyuas tau tias txhua tus neeg strand yog ib qho ntawm DNA . (Cov lus qhia: DNA yog soluble hauv dej, tab sis tsis ethanol).
Puas yog tib neeg DNA zoo ib yam li strawberry DNA?
Yog, lub DNA los ntawm ob hom cell yuav saib tsuas yog cov ib yam . Tus qauv ntawm DNA zoo ib yam ntawm txhua yam muaj sia. DNA extraction kuj tseem tsim nyog nyob rau hauv thiaj li yuav ua raws li cov DNA code (kev txiav txim ntawm lub hauv paus khub) ntawm cov kab mob sib txawv (raws li hauv Tib neeg Genome Project) thiab sib piv ntau hom.
Pom zoo:
Koj yuav ua li cas paub yog tias qhov hloov pauv theem yog qhov zoo lossis tsis zoo?
Yog tias lub sijhawm hloov pauv yog xoom, qhov nkhaus pib ntawm keeb kwm, tab sis nws tuaj yeem txav mus rau sab laug lossis sab xis nyob ntawm theem hloov. Kev hloov pauv theem tsis zoo qhia txog kev txav mus rau sab xis, thiab theem zoo hloov pauv qhia tias txav mus rau sab laug
Lub Tuam Tsev txhais li cas thaum nws hais tias kuv ntseeg tias qhov zoo rau nyuj yog qhov zoo rau kev lag luam?
Lub tuam tsev txhais tau hais tias yog cov nyuj muaj kev hwm thiab kho tau zoo, lawv yuav yooj yim dua los tuav uas yuav ua rau cov txheej txheem zoo dua rau txhua tus neeg koom tes
Koj tuaj yeem ua li cas yog tias koj tsis paub tias txheej twg yog nyob rau hauv cov txheej txheem rho tawm?
Koj tuaj yeem ua li cas yog tias koj tsis paub tias txheej twg yog nyob rau hauv cov txheej txheem rho tawm? Tso dej me me rau hauv lub caj dab ntawm qhov sib cais funnel. Ua tib zoo saib nws: yog tias nws tseem nyob hauv txheej txheej sab saud, txheej txheej ntawd yog txheej dej
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom loj tshwm sim ntawm koj cov khaub ncaws?
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom ntau tshwm sim ntawm koj cov khaub ncaws? Koj mus ncaj qha rau da dej kev nyab xeeb thiab sawb ntawm tag nrho koj cov khaub ncaws
Koj yuav ua li cas thiaj paub tias kev sib raug zoo yog qhov zoo lossis tsis zoo?
Qhov zoo correlation coefficient txhais tau hais tias raws li tus nqi ntawm ib qho kev sib txawv nce, tus nqi ntawm lwm qhov sib txawv nce; raws li ib tug txo qhov qis dua. Qhov tsis zoo correlation coefficient qhia tau hais tias raws li ib qho kev sib txawv nce, qhov txo qis, thiab vice-versa