Video: Dab tsi yog qee txoj hauv kev DNA tuaj yeem hloov kho?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
17.1B: Basic Techniques to Manipulate Cov khoom siv noob caj noob ces ( DNA thiab RNA) Cov txheej txheem yooj yim siv hauv cov khoom siv caj ces manipulation muaj xws li extraction, gel electrophoresis, PCR, thiab blotting txoj kev.
Ib yam li ntawd, koj tuaj yeem nug, dab tsi yog qee txoj hauv kev genes tuaj yeem siv tau?
Genetic engineering yog kev hloov kho ntawm lub cev phenotype los ntawm kev tswj nws cov khoom siv caj ces. Ib txhia genetic engineering siv lub hauv paus ntsiab lus ntawm recombination. Recombination yog txheej txheem los ntawm cov noob tshiab tso rau hauv cov kab mob DNA "Lub plasmid".
Ib tug kuj yuav nug, cov kws tshawb fawb siv cov txheej txheem dab tsi los tswj DNA? Cov Cov txheej txheem kws tshawb fawb siv los tswj DNA pib los ntawm kev kawm thiab hloov DNA molecules. Muaj cov txheej txheem sib txawv ntawm yuav ua li cas molecular biologists extract DNA los ntawm cov hlwb, lawv txiav DNA mus rau hauv me me, ces txheeb xyuas qhov sib lawv liag ntawm cov hauv paus hauv lub DNA molecule thiab ua unlimited luam ntawm lub DNA.
Ib sab saum toj no, dab tsi yog DNA manipulation?
Genetic engineering yog txheej txheem ntawm kev siv recombinant DNA (rDNA) thev naus laus zis los hloov kho caj ces ntawm lub cev. Kev lig kev cai, tib neeg muaj tswj genomes ncaj qha los ntawm kev tswj kev yug me nyuam thiab xaiv cov xeeb ntxwv nrog cov yam ntxwv xav tau.
Yuav ua li cas tib neeg manipulate genetic hloov hauv transgenesis?
Rau recap, genetic manipulation yog ib txoj kev ua tiav los tswj lub genome ntawm lub cev nyob rau hauv kev txiav txim rau tsim cov yam ntxwv uas xav tau. Yav dhau los, qhov no tau ua tiav los ntawm kev xaiv yug me nyuam, uas yog thaum qhov kev xav tau raug pom nyob rau hauv lub cev, thiab tib neeg tom qab ntawd yug lub cev nyob rau hauv kev cia siab ntawm qhov zoo li ntawd tau dhau mus.
Pom zoo:
Vim li cas peb ntsuas qee qhov kev ncua deb hauv astronomy hauv lub teeb xyoo thiab qee qhov hauv astronomical units?
Feem ntau cov khoom nyob rau hauv qhov chaw nyob deb li deb, hais tias siv ib tug kuj me me chav nyob deb, xws li ib tug astronomical unit, yog tsis siv. Hloov chaw, astronomers ntsuas qhov deb ntawm cov khoom uas nyob sab nraum peb lub hnub ci hauv lub teeb xyoo. Qhov ceev ntawm lub teeb yog kwv yees li 186,000 mais lossis 300,000 kilometers ib ob
Kev sib hloov puas tuaj yeem hloov tau los ntawm kev xav?
Ib qho kev txhais lus tuaj yeem hloov tau los ntawm ob qhov kev xav. Ib qho kev txhais lus tuaj yeem hloov tau los ntawm ob qhov kev sib hloov
Dab tsi yog ib txoj hauv kev uas koj tuaj yeem txo qhov kev sib txhuam ntawm ob qhov chaw?
Cov txheej txheem sib txawv tuaj yeem siv los txo qhov kev sib txhuam ntawm qhov chaw ntawm cov khoom hauv kev sib cuag. Ib txoj hauv kev los txo kev sib txhuam yog siv cov roj nplua nyeem rau qhov chaw, lwm qhov yog siv cov casters, rollers, lossis pob bearings nruab nrab ntawm qhov chaw, thiab lwm qhov yog ua kom du ntawm cov khoom hauv kev sib cuag
Dab tsi ntawm txoj kev tshawb fawb tuaj yeem txheeb xyuas hauv Darwin txoj haujlwm?
Kev xaiv ntuj thiab lwm yam txheej txheem ntawm kev hloov pauv tau raug tshawb xyuas los ntawm kev tsim thiab ntsuas cov kev xav. Darwin tau tshaj tawm cov kev xav hauv ntau qhov chaw, suav nrog geology, cog morphology thiab physiology, psychology, thiab evolution, thiab raug lawv mus rau qhov kev ntsuam xyuas loj heev
Dab tsi yog qee txoj hauv kev tuaj yeem hloov pauv?
Cov teeb meem feem ntau hloov lub xeev thaum koj ntxiv lossis tshem tawm cov cua sov, uas hloov qhov kub ntawm qhov teeb meem. Tam sim no cia peb tshawb txog peb txoj hauv kev uas lub xeev ntawm cov teeb meem tuaj yeem hloov pauv: khov, yaj, thiab kub