Video: Dab tsi yog genotype ntawm ib tug neeg nrog polydactyly?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Polydactyly yog ib qho kev mob tshwm sim nyob rau hauv uas a tus neeg muaj ntiv tes lossis ntiv taw ntxiv. Nws yog tshwm sim los ntawm ib tug tseem ceeb allele ntawm ib tug noob. Ib tug leej twg yog homozygous (PP) lossis heterozygous (Pp) rau cov tseem ceeb allele yuav tsim Polydactyly.
Hais txog qhov no, dab tsi noob cuam tshuam los ntawm polydactyly?
GLI 3 Cov noob hloov pauv tuaj yeem ua rau ntau hom kev cais polydactyly.
Tom qab ntawd, lo lus nug yog, vim li cas polydactyly yog qhov tseem ceeb tshaj plaws? Muaj ntau tshaj tsib ntiv tes yog qhov nyuaj me ntsis vim nws tuaj yeem ua tau tseem ceeb los yog recessive qhov zoo , nyob ntawm seb cov noob muaj feem cuam tshuam li cas. Yog polydactyly yog tshwm sim los ntawm ib leeg xwb noob uas tsuas yog cuam tshuam tus naj npawb ntawm cov ntiv tes lossis ntiv taw thiab tsis muaj dab tsi ntxiv, ces nws feem ntau yog a qhov tseem ceeb.
Raws li txoj cai, yog cov noob rau 6 ntiv tes tseem ceeb?
Polydactyly tuaj yeem tshwm sim los ntawm nws tus kheej, lossis ntau dua, raws li ib qho ntawm cov tsos mob ntawm congenital anomalies. Thaum nws tshwm sim los ntawm nws tus kheej, nws yog txuam nrog autosomal tseem ceeb mutations nyob rau hauv ib leeg noob , i.e. nws tsis yog multifactorial qhov zoo . Tab sis mutation nyob rau hauv ntau yam noob tuaj yeem ua rau polydactyly.
Polydactyly cuam tshuam li cas rau ib tug neeg?
Polydactyly vim a tus neeg kom muaj cov ntiv tes los yog ntiv taw ntxiv ntawm ib lossis ob leeg ntawm lawv txhais tes lossis ko taw. Tus lej ntxiv lossis tus lej yuav yog: ua tiav thiab ua haujlwm tiav. ib feem tsim, nrog ib co pob txha.
Pom zoo:
Qhov txawv ntawm qhov loj ntawm ib tug proton thiab qhov loj ntawm ib tug electron yog dab tsi?
Protons thiab neutrons muaj kwv yees li qub, tab sis lawv yog ob qho tib si loj dua li cov hluav taws xob (kwv yees li 2,000 npaug loj li electron). Tus nqi zoo ntawm ib qho proton yog sib npaug hauv qhov loj rau qhov tsis zoo ntawm tus electron
Dab tsi yog qhov piv txwv ntawm hom tsiaj uas tib neeg cuam tshuam nrog kev sib tw?
Yuav ua li cas yog ib qho piv txwv ntawm ib hom tsiaj uas tib neeg cuam tshuam nrog kev sib raug zoo? ? Yuav ua li cas yog ib qho piv txwv ntawm ib hom kab mob parasitic nrog tib neeg? kab mob kab mob, leeches, zuam, ntshauv, fleas, kab mob ua rau kab mob (xws li cov kab mob ua rau mob syphilis, gonorrhea, tuberculosis, mob ruas, malaria, thiab lwm yam)
Yuav ua li cas yog ib tug piv txwv ntawm ib tug rational naj npawb uas tsis yog ib tug tag nrho?
Tus lej "rational" yog qhov piv ntawm ob tus lej. Piv txwv li, cov hauv qab no yog cov lej rational, thiab tsis muaj leej twg yog tus lej: 1 / 2. 2 / 3
Dab tsi yog qhov flux los ntawm lub voos xwmfab ntawm sab yog tias tus nqi ntawm Q yog ntawm ib qho ntawm nws lub ces kaum?
Raws li peb paub tias, tag nrho cov flux los ntawm tus nqi q yog q / ε 0 (Gauss txoj cai). Yog hais tias tus nqi yog nyob rau ntawm lub ces kaum ntawm lub voos xwmfab, ib co ntawm cov flux nkag mus rau hauv lub voos xwmfab thiab tawm los ntawm ib co ntawm nws lub ntsej muag. Tab sis qee qhov flux tsis nkag mus rau hauv lub voos xwmfab. Qhov 1/8th no yuav muab faib ua 3 ntu dua
Dab tsi yog genotype ntawm tus neeg uas muaj kab mob ntshav qab zib?
Feem ntau, ib tus neeg tau txais ob daim ntawv theej ntawm cov noob uas tsim cov beta-globin, cov protein uas xav tau los tsim cov hemoglobin ib txwm muaj (hemoglobin A, genotype AA). Ib tus neeg uas muaj mob qog noj ntshav tau txais ib qho allele ib txwm muaj thiab ib qho txawv txav ntawm cov kab mob hemoglobin S (hemoglobin genotype AS)