Yuav ua li cas yog lub ntsiab ntawm tus xaiv? Lub achievements ntawm niaj hnub yug me nyuam rau

Xaiv yog ib tug ntawm cov feem ntau niaj hnub thiab advanced sciences. Tsaug rau nws cov tau tau tsim tshiab hom uas muaj sia nyob, uas tau coj ntau yam kev pab rau noob neej. Subject teeb meem, cov hom phiaj thiab lub ntsiab lus qhia ntawm chaw ua taus zes yuav tsum tau tham nyob rau hauv peb tsab xov xwm.

Subject thiab xaiv kev pab raws qib

Yuav ua li cas yog lub ntsiab ntawm tus xaiv? Cov kev kawm ntawm cov kev txhim kho uas twb muaj lawm thiab tsim tshiab tsiaj breeds, cog ntau ntau yam thiab microorganisms. Nws kawm yog cov kawm thiab cov kev siv nyob rau hauv kev xyaum ntawm tej qauv ntawm lawv cov evolution. Lub achievements ntawm niaj hnub yug me nyuam rau account rau kaum ntawm txhiab ntawm mineral rau tib neeg lub cev. Lub theoretical lub hauv paus ntawm no yog lwm cov science - noob caj noob ces. Nws considers cov yam ntxwv ntawm caj thiab variability ntawm tag nrho cov nyob yam.

Lub ntsiab hom phiaj ntawm chaw ua taus zes yog yug dua ntawm ntau yam nroj tsuag thiab muaj menyuam coob coob hom. Ntxiv mus, zaum no sim coj cov neeg uas yog unpretentious mus rau lub tej yam kev mob ntawm ib puag ncig thiab kev hloov nyob rau hauv lub unfavorable sab rau lawv. Micro-kab yog hais raws li xav tau. Qhov no kuj yuav mutational dab thiab division tus nqi ntawm pab cov kab mob hlwb.

Basic txoj kev yug me nyuam rau

Yuav ua li cas yog hais txog txoj kev xaiv, peb pom tawm. Tab sis txij thaum tag nrho cov kab mob kawm no ho txawv los ntawm txhua lwm yam nyob rau hauv cov qauv thiab cov yam ntxwv, lawv txhua tus muaj ntau pab pawg kev. Txij ancient sij hawm, cov neeg siv txawm tsis nco qab li xaiv. Xaiv yog tus thawj txoj kev. Nrog rau nws siv hybridization thiab qhov kev txiav txim ntawm mutagens. Thaum lub tam sim no theem ntawm kev loj hlob yog siv fundamentally tshiab sim txoj kev - tshuaj ntsuam genetic thiab cell engineering.

biotechnology

Tam sim no, lom dab thiab tshuab muaj scale muaj ntau lawm. Cov tau mas ntaub ntawv ntawm cov kab mob, kab lis kev cai ntawm lub hlwb thiab cov nqaij mos ntawm cov nroj tsuag thiab tsiaj txhu. Thiab lub achievements ntawm niaj hnub yug me nyuam rau ua tej yam ntuj tso khoom uas predetermined zog.

Nta ntawm tsob nroj chaw ua taus zes

Li ntawd tseem ceeb thawj daim ntawv - uas yog qhov kev kawm ntawm kev xaiv. Txawm li cas los, cov qauv ntawm cov nroj tsuag tso cai rau siv xwb tej txoj kev los tsim tshiab nta raws li nyob rau hauv tus thawj. Qhov no inbreeding, polyploidy, thiab hybridization mutagenesis. Cov lawv peb yuav highlight ntau tsoos. Qhov no yog ib tug txawv xaiv ntawm hom thiab cov hybridization. Mus coj ib tug tshiab ntau yam nrog dab tsi zoo, nws yog tsim nyog los ua kev cai ib tug complex lag luam. Nws cov lus dag nyob rau hauv lub xaiv ntawm thawj zaug cov ntaub ntawv thiab hybridization ua raws li los ntawm kev xaiv. Nyob rau hauv no yav tas, los ntawm mating nrog kua tsw thiab te nqi zog twb tau ntau ntau yam combining nqi zog hybrids.

Pib nyob rau hauv tsob nroj yuav nteg qe yog cov qauv ntawm cov heterosis. Ua li no, koj yuav tsum coj ib tug neeg sab nraud series huv cov kab, thiab ces tus ntoo khaub lig lawv nrog txhua lwm yam. Cov no ib tug zoo dua ntawm ntau yam muaj ntau txiv hmab txiv ntoo thiab zaub noj cov qoob loo.

Cov tshwm sim ntawm polyploidy yog ib tug ntau nce nyob rau hauv lub xov tooj ntawm chromosomes. Chiv, nws yog nyob rau hauv lub qhov ntawm ib tug tej yam ntuj tso txoj kev thaum raug mutagens nroj tsuag. Thaum lub tam sim no theem, breeders feem ntau ua rau diploid hlwb alkaloid colchicine. Tau daim ntawv muaj ntau zog fertility piv rau lub hauv paus. Ib tug genotype yog hloov mus rau lawv tetraploid.

yug me nyuam rau cov tsiaj

Lub chaw ua taus zes tsiaj yog siv sib txawv dog dig txoj kev, vim hais tias lawv yuav tsis muaj peev xwm sawv ntawm vegetative tu tub tu kiv. Zaum siv mas ib tug neeg xaiv thiab hybridization ntawm ob hom. Thaum inbreeding cai nce nyob rau hauv homozygosity, uas ua rau yus lub degeneration ntawm tus tsiaj thiab cov tsis ntawm nws zoo qualities. Kom tsis txhob no, breeders lwm ntawm luv luv thiab outbreeding. Tseem ceeb ib tug neeg zaum muaj kev tswj kom tau nyob rau hauv crosses ntawm cov neeg ntawm ntau hom. Piv txwv li uas yog hybrid chaw ua taus zes nees luav thiab nees - zag, thiab nyuj yak - haynak. Qhov teeb meem yog hais tias feem ntau ntawm cov neeg tau los ntawm tej crosses yog muaj menyuam tsis taus thiab yuav tsis tsim fertile offspring. Qhov kos rau txoj cai no yog ib tug liger thiab Tigon, cov maum uas muaj peev xwm ntxiv tu tub tu kiv.

Cov kab mob, thiab tshwj xeeb yog cov qe

Tam sim no, qhia rau peb nrhiav tau tawm yog dab tsi rau qhov kev kawm ntawm kev xaiv ntawm microorganisms. Qhov no yog tag nrho cov hom ntawm prokaryotic cov kab mob, protozoa, ib leeg-celled fungi thiab qis nroj tsuag - algae. Muaj ntau ntawm lawv yog cov qhov chaw ntawm cov tshuaj, pub additives, chiv, siv nyob rau hauv kev siv ntawm wine, khob cij thiab khoom noj siv mis. Nyob rau hauv thiaj li yuav qhia tseem ceeb thiab tsim ib hom nyob rau hauv industrial qhuav, koj yuav tsum mus los ntawm ob peb theem. Thawj pom cov feem ntau ruaj khov hlwb. Lub hauv paus ntawm no xaiv yog genetic variation. Ntxiv nqi lim kho nrog mutagens. Tom qab nws yog tsim nyog los qhia hais tias tus feem ntau tsim hlwb twb hloov genotype. Xaiv clones yog raug pheej rov qab ua nqe vaj lug kub rau hauv lub tshiab txoj kev loj hlob medium. Thiab twb xaiv hom yog propagated nyob rau hauv ib tug muaj scale.

Zeem muag rau txoj kev loj hlob ntawm biotechnology

Lub achievements ntawm niaj hnub yug me nyuam rau pab tau daws tau ntau yam tseem ceeb cov teeb meem. Piv txwv li, ib tug tshiab khiv derived, ntau tsim nroj ntau ntau yam thiab tsiaj breeds yog pab muab khoom noj khoom haus qhov chaw ntawm lub ntiaj chaw uas yog tshwj xeeb yog nyob rau hauv yuav tsum tau.

Kev siv ntawm vermicompost thiab chiv uas yog raws li nyob rau hauv chemotroph thiab cua nab muab ceev txoj kev loj hlob ntawm cov nroj tsuag loj. Thaum uas siv cov tshuaj tau breeders, av nraaj nkag nrog nitrogen thiab phytohormones.

Lub tu tub tu kiv ntawm cov nroj tsuag yog nce siv cov ntaub so ntswg kab lis kev cai txoj kev, nyob rau hauv uas koj yuav tau txais cov cog khoom tsis raug tus kab mob los ntawm cov kab mob. Nyob rau lub hauv paus ntawm micro-kab nyob rau hauv xyoo tsis ntev los breeders tau tsim tshiab fodder proteins uas yog zoo dua absorbed los ntawm cov tsiaj.

Xaiv tseem yog ib qho tseem ceeb heev ib feem ntawm lub neej tshiab nimno kws kev lag luam. Nrog biosynthesis npaj cov tshuaj hormones, tshuaj tua kab mob, thiab enzymes.

Yog li, cov kev kawm xaiv cov kev uas koj yuav ua tau kom lub productivity ntawm ua liaj ua teb, khoom noj khoom haus thiab kws industries. Tam sim no, ua tsaug rau lub achievements ntawm niaj hnub science tsim ntau ntau yam, breeds thiab micro-kab, vim uas muaj ntau yam ntawm cov teeb meem ntawm tib neeg yuav tsum tau solved.