Cov txheej txheem:
Video: Yuav ua li cas koj ua tus ntoo khaub lig xeem?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Xeem hla koom nrog kev yug me nyuam ntawm tus neeg hauv nqe lus nug nrog lwm tus neeg uas qhia txog qhov tsis zoo ntawm tib qho kev coj cwj pwm. Kev txheeb xyuas qhov sib npaug ntawm cov xeeb ntxwv thiab cov xeeb ntxwv tau txiav txim siab seb tus neeg hauv nqe lus nug yog homozygous dominant lossis heterozygous.
Ib yam li ntawd, nws raug nug, qhov kev xeem hla nrog piv txwv yog dab tsi?
Hauv ib xeem , tus neeg uas tsis paub genotype raug hla nrog homozygous recessive tus neeg (Daim duab hauv qab). Xav txog cov hauv qab no piv txwv : Piv txwv tias koj muaj paj liab thiab dawb thiab xim liab (P) yog qhov tseem ceeb rau dawb (p). A xeem yuav txiav txim siab lub cev lub genotype.
Tom qab ntawd, lo lus nug yog, qhov piv txwv ntawm kev xeem hla yog dab tsi? Qhov no 1:1:1:1 phenotypic piv yog qhov classic Mendelian piv rau qhov kev sim hla uas cov alleles ntawm ob lub noob sib txawv ntawm nws tus kheej rau hauv gametes (BbEe × bbee).
Tib neeg kuj nug, txhais li cas los ntawm kev xeem tus ntoo khaub lig?
Kev txhais ntawm xeem .: ib genetic ntoo khaub lig nruab nrab ntawm ib tug neeg homozygous recessive thiab ib tug coj xav tias heterozygote los txiav txim lub genotype ntawm tom kawg.
Koj hla genotypes li cas?
Nws yog ib qho tseem ceeb uas koj ua raws li cov kauj ruam tsim nyog
- Ua ntej koj yuav tsum tsim kom muaj koj tus niam txiv ntoo khaub lig, lossis P1.
- Tom ntej no koj yuav tsum ua 16 square Punnett Square rau koj 2 yam koj xav hla.
- Cov kauj ruam tom ntej yog los txiav txim cov genotypes ntawm ob niam txiv thiab muab lawv cov ntawv los sawv cev rau cov alleles.
Pom zoo:
Yuav ua li cas tsis tiav dominance thiab Codominance txawv dua li ib txwm Mendelian ntoo khaub lig?
Nyob rau hauv ob qho tib si codominance thiab tsis tiav dominance, ob qho tib si alleles rau qhov zoo yog dominant. Nyob rau hauv codominance tus neeg heterozygous qhia ob qho tib si ib txhij yam tsis muaj kev sib xyaw. Nyob rau hauv tsis tiav dominance ib tug heterozygous ib tug blends ob yam
Yuav ua li cas thiaj ua tau tus ntoo khaub lig?
Test crosses yog siv los kuaj ib tus neeg lub genotype los ntawm kev hla nws nrog ib tus neeg paub txog genotype. Cov tib neeg uas qhia txog cov phenotype recessive yog paub tias muaj homozygous recessive genotype. Lub phenotypically dominant kab mob yog tus neeg nyob rau hauv nqe lus nug nyob rau hauv ib tug xeem cross
Yuav ua li cas koj nrhiav tau tus ntoo khaub lig seem ntawm ib tug square?
VIDEO Ua kom pom qhov no, dab tsi yog qhov hla ntawm lub square? Hla ntu . A hla ntu yog cov duab peb tau txais thaum txiav ncaj los ntawm ib yam khoom. Cov hla ntu ntawm cov khoom no yog daim duab peb sab. Nws zoo li kev pom rau sab hauv ntawm ib yam dab tsi uas tau txiav los ntawm nws.
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
Yuav ua li cas koj tu rau tus ntoo khaub lig hlau begonia?
Nyiam ib nrab ntxoov ntxoo thiab organically nplua nuj, moist tab sis zoo-drained xau. Qhov no begonia yuav tsum muaj cov av noo siab thaum lub sij hawm loj hlob. Cia cov av qhuav ntawm watering thiab tsis txhob overwatering vim nws yuav ua rau cov kab mob fungal los yog rot. Propagate los ntawm noob, nplooj cuttings los yog seem ntawm rhizome