Video: Qhov zoo li cas yog ib qho piv txwv ntawm qhov zoo ntawm tib neeg?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ib txhia piv txwv ntawm qualitative yam suav nrog daim tawv nqaij puag ncig / wrinkled hauv pea pods, albinism thiab tib neeg ' ABO cov ntshav. The ABO tib neeg pawg ntshav qhia txog lub tswvyim no zoo. Tsuas yog qee qhov tshwj xeeb tsis tshua muaj, cov tib neeg tuaj yeem haum rau hauv ib qho ntawm plaub pawg rau ABO ib feem ntawm lawv hom ntshav: A, B, AB lossis O.
Ib yam li ntawd, qhov zoo li cas yog ib qho piv txwv ntawm qhov muaj nuj nqis hauv tib neeg?
A quantitative zoo yog ib qho kev ntsuas phenotype uas nyob ntawm qhov kev ua ntawm ntau cov noob thiab ib puag ncig. Cov no yam ntxwv tuaj yeem sib txawv ntawm cov tib neeg, dhau ntawm ntau yam, los tsim kev faib tawm txuas ntxiv ntawm phenotypes. Piv txwv suav nrog qhov siab, qhov hnyav thiab ntshav siab.
Cov xim ntawm daim tawv nqaij puas yog qhov zoo? Hauv biology, a qhov zoo yog ib tug yam ntxwv txiav txim los ntawm koj caj ces pleev. Cov plaub hau xim , qhov muag xim , qhov loj me, hom ntshav thiab kab plaub hau yog tag nrho cov piv txwv ntawm kev lom neeg yam ntxwv hauv cov neeg. Cov yam ntxwv zoo yog hom yam ntxwv uas poob rau hauv cov chav kawm sib txawv lossis pawg yam tsis muaj kev hloov pauv hauv cov ntawd yam ntxwv.
Kuj tseem paub, qhov piv txwv ntawm tus cwj pwm zoo yog dab tsi?
Ib piv txwv rau a qualitative zoo yog paj xim, uas tuaj yeem yog xim liab, xim av, ntsuab, lossis daj. Lwm tus piv txwv yuav yog pawg ntshav. Cov yam ntxwv zoo feem ntau yog encoded los ntawm ib lub noob lossis qee zaum los ntawm ob peb tus lej ntawm cov noob. Cov no yam ntxwv feem ntau tsis hloov hauv teb rau ib puag ncig.
Yuav ua li cas yog ib co piv txwv ntawm polygenic zoo?
Polygenic traits muaj ntau yam phenotypes (cov yam ntxwv ntawm lub cev) uas tau txiav txim los ntawm kev sib cuam tshuam ntawm ob peb alleles. Piv txwv ntawm polygenic qub txeeg qub teg hauv tib neeg muaj xws li cov yam ntxwv xws li tawv nqaij xim , qhov muag xim, xim plaub hau, lub cev zoo, qhov siab , thiab hnyav.
Pom zoo:
Ib qho piv txwv ntawm tsev neeg zoo li cas?
Ib tsev neeg zoo li yog ib yam kab mob uas kis tau los ntawm niam txiv cov noob rau lawv cov menyuam. Lwm yam recessivetraits muaj xws li pom ze ze, cov plaub hau liab, plaub hau daj, nyias daim di ncauj thiab txuas pob ntseg. Cov kab mob caj ces tuaj yeem ua rau muaj kev cuam tshuam loj heev
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 qho piv txwv ntawm codominant qub txeeg qub teg nyob rau hauv tib neeg?
Thaum ob qho alleles rau qhov zoo sib npaug sib npaug nrog tsis muaj kev cuam tshuam lossis tseem ceeb, nws tsim codominance. Piv txwv ntawm codominance suav nrog tus neeg uas muaj ntshav hom AB, uas txhais tau hais tias ob qho tib si A allele thiab B allele tau qhia sib npaug
Ib qho piv txwv zoo ntawm kev hloov tshuaj lom neeg yog dab tsi?
Ib qho piv txwv zoo ntawm cov tshuaj hloov pauv.reactants. cov khoom uas tab tom yuav hnov. cov khoom. cov khoom tshiab tsim
Dab tsi yog qee qhov piv txwv ntawm kev cuam tshuam tsis zoo ntawm tib neeg ib puag ncig kev cuam tshuam?
Kev ua liaj ua teb tuaj yeem cuam tshuam tsis zoo rau peb ib puag ncig, suav nrog kev poob ntawm biodiversity, dej paug, kev hloov pauv huab cua, av yaig thiab muaj kuab paug