Cov txheej txheem:
Video: Puas yog Kalettes hloov pauv hloov pauv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Kalettes , tus ntoo khaub lig ntawm kale thiab Brussels sprouts, yog cov zaub hybrid tshiab tshaj plaws los ntaus lub khw hauv Asmeskas. Cov veggie tshiab tau tsim los ntawm Tozer Seeds, lub tuam txhab cog qoob loo hauv tebchaws Askiv uas coj zaub tuaj rau Tebchaws Meskas thaum lub caij nplooj zeeg xyoo 2014. Cov tsis- noob caj noob ces - hloov kho zaub coj 15 xyoo kom zoo.
Tsuas yog li ntawd, koj yuav paub li cas yog tias koj cov khoom yog GMO?
Txheeb xyuas seb cov khoom loj hlob li cas los ntawm kev nyeem nws daim ntawv lo lossis daim ntawv lo
- Tus lej 4 tus lej txhais tau hais tias zaub mov tau cog lus tseg.
- 5-tus lej uas pib nrog 9 txhais tau tias cov khoom yog organic.
- Tus lej 5 tus lej pib nrog tus lej 8 txhais tau tias nws tau hloov kho caj ces. (
Tom qab ntawd, lo lus nug yog, nws txhais li cas los hloov kho caj ces? Hloov caj ces Cov kab mob (GMOs) tuaj yeem txhais tau tias yog cov kab mob (piv txwv li cov nroj tsuag, tsiaj txhu lossis kab mob) uas caj ces khoom (DNA) tau hloov nyob rau hauv ib txoj kev uas ua tsis tshwm sim los ntawm mating thiab/los yog natural recombination.
Hais txog qhov no, cov txiv hmab txiv ntoo hybrid puas hloov pauv hloov?
Hybrids tsis txhob siv hloov caj ces lub cev technology. Hybrids siv tsoos pollination uas tuaj yeem tshwm sim hauv qhov xwm txheej. Nrog tswj pollination, cultivars muaj peev xwm yug me nyuam tiam tshiab ntawm fruiting nroj tsuag nrog nce tus yam ntxwv xav tau.
Cov zaub dab tsi yog hloov kho caj ces?
Ntau tshaj 90% ntawm tag nrho cov soybean paj rwb thiab pob kws acreage nyob rau hauv Teb Chaws Asmeskas yog siv los loj hlob genetic engineered qoob loo. Lwm cov khoom noj uas nrov thiab pom zoo muaj xws li qab zib beets, alfalfa, canola, papaya thiab lub caij ntuj sov squash. Tsis ntev los no, cov txiv apples uas tsis xim av thiab cov qos yaj ywm tsis muaj nqaij tawv kuj tau pom zoo los ntawm FDA.
Pom zoo:
Vim li cas cov hnub qub dhau los ntawm kev hloov pauv hloov pauv?
Stellar evolution yog tus txheej txheem uas lub hnub qub hloov pauv nyob rau lub sijhawm. Cov hnub qub uas muaj tsawg kawg yog ib nrab ntawm lub hnub tuaj yeem pib tsim lub zog los ntawm kev sib xyaw ntawm helium ntawm lawv cov tub ntxhais, thaum lub hnub qub ntau dua tuaj yeem sib xyaw cov ntsiab lus hnyav dua raws li cov khoom sib xyaw ua ke
Dab tsi yog qhov kev hloov pauv hloov pauv?
Kev hloov pauv, hauv molecular biology, yog hais txog kev hloov pauv hauv deoxyribonucleic acid (DNA), qhov twg ib qho (ob lub nplhaib) purine hloov pauv rau (ib lub nplhaib) pyrimidine, los yog vice versa
Vim li cas tom qab kev hloov pauv kev hloov pauv tseem ceeb?
Kev hloov pauv tom qab kev txhais lus (PTMs) xws li glycosylation thiab phosphorylation ua lub luag haujlwm tseem ceeb ntawm kev ua haujlwm ntawm hemostatic proteins thiab tseem ceeb heev hauv kev teeb tsa kab mob. Xws li theem nrab hloov pauv rau cov proteins hemostatic muaj ntau yam cuam tshuam rau lawv lub peev xwm los cuam tshuam nrog lwm cov proteins
Dab tsi yog qhov txawv ntawm ib puag ncig kev hloov pauv thiab kev hloov pauv qub txeeg qub teg?
Qhov sib txawv ntawm cov yam ntxwv ntawm cov tib neeg ntawm tib hom yog hu ua variation. Qhov no yog inherited variation. Qee qhov kev hloov pauv yog qhov tshwm sim ntawm qhov sib txawv ntawm ib puag ncig, lossis ib tus neeg ua dab tsi. Qhov no yog hu ua environmental variation
Peb qhov laj thawj tseem ceeb ntawm kev hloov pauv hloov pauv yog dab tsi?
Allele frequencies nyob rau hauv ib tug pej xeem yuav hloov vim plaub lub hauv paus zog ntawm evolution: Natural Selection, Genetic Drift, Mutations thiab Gene Flow. Kev hloov pauv yog qhov kawg ntawm cov alleles tshiab hauv cov noob caj noob ces. Ob ntawm cov txheej txheem tseem ceeb tshaj plaws ntawm kev hloov pauv hloov pauv yog: Natural Selection thiab Genetic Drift