Video: GMO noob yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Noob sau npe GMO - lub acronym rau hloov caj ces kab mob”-qhov tshwm sim los ntawm ib qho ntawm kev lag luam cov kev coj tsis sib haum xeeb tshaj plaws. GMO noob yog bred tsis nyob rau hauv ib lub vaj tab sis nyob rau hauv ib lub chaw soj nstuam siv niaj hnub biotechnology cov tswv yim zoo li gene splicing.
Ib yam li ntawd, cov noob twg raug hloov kho caj ces?
Nov yog daim ntawv teev tag nrho cov qoob loo zaub mov uas koj tuaj yeem nrhiav tau GMO ntau yam: pob kws, taum pauv, paj rwb (rau roj), canola (tseem muaj roj), squash, thiab papaya. Koj tuaj yeem suav nrog cov qab zib beets, uas tsis tau noj ncaj qha, tab sis ua kom zoo rau hauv qab zib.
Tsis tas li ntawd, GMOs yog dab tsi hauv kev ua liaj ua teb? Cov noob qoob loo hloov pauv. Genetically hloov cov qoob loo (GM qoob loo) yog cov nroj tsuag siv hauv kev ua liaj ua teb , DNA ntawm uas tau hloov kho siv cov txheej txheem genetic engineering. Feem ntau, lub hom phiaj yog los qhia txog qhov zoo tshiab rau cov nroj tsuag uas tsis tshwm sim nyob rau hauv hom.
Hais txog qhov no, GMO ua haujlwm li cas?
Genetically hloov cov kab mob ( GMOs ) yog cov kab mob uas muaj sia nyob uas nws cov khoom siv noob caj noob ces tau raug tsim kho hauv chav kuaj los ntawm genetic engineering. Qhov no tsim kev sib txuas ntawm cov nroj tsuag, tsiaj txhu, kab mob, thiab cov kab mob genes uas ua tsis tshwm sim nyob rau hauv cov xwm txheej los yog los ntawm cov txheej txheem kev sib tw.
Dab tsi yog qhov txaus ntshai ntawm cov khoom noj uas hloov pauv caj ces?
Cov txiaj ntsig ntawm kev tshawb fawb feem ntau nrog GM zaub mov qhia tias lawv yuav ua rau qee yam tshuaj lom teebmeem xws li kab mob siab, mob pancreatic, lub raum, los yog kev loj hlob teebmeem thiab tej zaum yuav hloov cov hematological, biochemical, thiab immunologic tsis.
Pom zoo:
Dab tsi yog qhov tseem ceeb ntawm cov noob caj noob ces rau kev loj hlob ntawm fetal?
Kev soj ntsuam ntawm lub luag haujlwm ntawm chromosomes hauv tib neeg txoj kev loj hlob thiab kev loj hlob ntawm lub fetus tau mob siab rau qhov txawv txav ntawm chromosomal. Cov noob muaj cov lus qhia rau kev loj hlob thiab kev loj hlob. Qee qhov kev hloov gene ua rau cov gene faulty kom cov lus nyeem tsis raug lossis tsis nyeem tag nrho los ntawm lub xovtooj ntawm tes
Dab tsi yog txhais los ntawm cov noob tseem ceeb thiab cov noob caj noob ces?
(Nyob rau hauv cov ntsiab lus ntawm caj ces, ib qho tseem ceeb tshaj plaws yog ib qho uas yog phenotypically qhia hauv heterozygotes). Ib qho tseem ceeb tshaj plaws yog tawm tsam qhov tsis zoo uas tshwm sim tsuas yog thaum muaj ob daim ntawv theej ntawm cov noob. (Nyob rau hauv cov ntsiab lus genetic, ib tug recessive zoo yog ib tug uas yog phenotypically qhia tsuas yog nyob rau hauv homozygotes)
Hox noob yog dab tsi tshwm sim yog tias Hox noob hloov?
Ib yam li ntawd, kev hloov pauv hauv Hox cov noob tuaj yeem ua rau lub cev thiab cov ceg tawv hauv qhov chaw tsis raug raws lub cev. Zoo li tus thawj coj ua si, Hox noob tsis ua hauv kev ua si lossis koom nrog hauv kev tsim tsa ceg ntawm lawv tus kheej. Cov khoom lag luam protein ntawm txhua Hox gene yog ib qho kev hloov pauv
Dab tsi yog qhov kev kuaj hla hauv cov noob caj noob ces?
Nyob rau hauv cov noob caj noob ces, ib qho kev sim hla, thawj zaug qhia los ntawm Gregor Mendel, koom nrog kev yug me nyuam ntawm ib tus neeg nrog phenotypically recessive tus neeg, txhawm rau txiav txim siab zygosity ntawm yav dhau los los ntawm kev txheeb xyuas qhov feem ntawm cov xeeb ntxwv phenotypes. Zygosity tuaj yeem yog heterozygous lossis homozygous
Dab tsi yog Codominance hauv cov noob caj noob ces tsis yog Mendelian?
Thaum cov alleles rau ib qho kev coj cwj pwm yog codominant, lawv ob leeg qhia sib npaug es tsis yog ib qho tseem ceeb allele noj tag nrho cov kev tswj ntawm ib qho allele recessive. Qhov no txhais tau hais tias thaum lub cev muaj ob qhov sib txawv alleles (piv txwv li, yog heterozygote), nws yuav qhia ob qho tib si tib lub sijhawm