Video: Qhov txawv ntawm homozygous thiab heterozygous chromosomes yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Homozygous txhais tau hais tias ob qho tib si luam ntawm cov noob los yog qhov chaw sib tw thaum heterozygous txhais tau hais tias cov ntawv luam tsis sib xws. Ob tug tseem ceeb alleles (AA) los yog ob tug recessive alleles (aa) yog homozygous . Ib qho tseem ceeb allele thiab ib qho recessive allele (Aa) yog heterozygous.
Ntxiv mus, cov piv txwv heterozygous thiab homozygous yog dab tsi?
Homozygous txhais tau hais tias lub cev muaj ob daim ntawv theej ntawm tib allele rau ib lub noob. Heterozygous txhais tau hais tias ib tug kab mob muaj ob tug sib txawv alleles ntawm ib tug noob. Rau piv txwv , pea nroj tsuag tuaj yeem muaj paj liab thiab ob qho tib si homozygous dominant (liab-liab), los yog heterozygous (liab-dawb).
Tom qab ntawd, lo lus nug yog, ua li cas koj thiaj paub tias lub cev yog homozygous lossis heterozygous? Los txheeb xyuas seb ib qho kab mob exhibiting ib dominant trait yog homozygous los yog heterozygous rau ib qho allele tshwj xeeb, tus kws tshawb fawb tuaj yeem ua tau a xeem ntoo khaub lig. Cov kab mob nyob rau hauv nqe lus nug yog hla nrog ib tug kab mob uas yog homozygous rau qhov recessive zoo, thiab cov xeeb leej xeeb ntxwv xeem tus ntoo khaub lig raug tshuaj xyuas.
Kuj Paub, qhov zoo sib xws ntawm homozygous thiab heterozygous yog dab tsi?
Yog koj hais txog noob caj noob ces xwb tiag zoo sib xws ntawm Qhov ob yog tias lawv yog cov ntsiab lus siv los piav qhia txog alleles uas pom ntawm ib qho gene. Yog koj muaj homozygous alleles, ces ob leeg yog tib yam. Yog koj muaj heterozygous alleles, ces ob ntawm lawv txawv.
Heterozygous mob yog dab tsi?
Cov noob tuaj yeem muaj nyob hauv homozygous lossis heterozygous mob . Homozygous yog ib mob nyob rau hauv uas ib tug noob muaj ib khub ntawm tib alleles (TT los yog tt) rau ib tug yam ntxwv. Heterozygous yog a mob nyob rau hauv uas ib tug noob muaj ib tug khub ntawm txawv alleles (Tt) rau ib tug yam ntxwv.
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