Qhov Tseem Ceeb Qhov Sib Txawv - Nruam vs Nruam Variation
Qhov sib txawv uas muaj nyob nruab nrab ntawm cov kab mob uas yog tib neeg los yog hom tsiaj tau piav qhia los ntawm lo lus 'variation.' Cov kev sib txawv lossis kev sib txawv ntawm cov qauv hauv txhua hom yog thawj zaug lees paub los ntawm Darwin thiab Wallace. Yog tias ib qho kev tshawb fawb tau ua rau ib tus neeg loj, ob hom kev hloov pauv tuaj yeem pom tias yog kev hloov pauv tas mus li thiab kev hloov pauv tsis tu ncua. Qhov sib txawv tseem ceeb ntawm kev hloov pauv tsis tu ncua thiab tsis tu ncua yog qhov kev hloov pauv tas mus li yog qhov kev hloov pauv uas tsis muaj kev txwv ntawm tus nqi uas tuaj yeem tshwm sim hauv cov pej xeem thaum qhov kev hloov pauv tsis tu ncua yog qhov kev hloov pauv uas muaj cov pab pawg sib txawv rau cov kab mob.
Kev hloov pauv txuas ntxiv yog dab tsi?
Nyob rau hauv kev hloov pauv tas mus li, cov kev hloov pauv ntawm ib qho tshwj xeeb hauv cov pej xeem tau pom los ntawm ib qho huab mus rau lwm qhov yam tsis muaj kev so. Cov yam ntxwv sib txawv ntawm cov pej xeem tuaj yeem pom qhov sib txawv tsis tu ncua. Cov yam ntxwv zoo li no yog tsim los ntawm kev sib xyaw ua ke ntawm polygenes thiab ib puag ncig yam. Yog hais tias ib tug pej xeem ntawm nyuj raug suav hais tias yog ib qho piv txwv, cov mis nyuj yield tsis tsuas yog cuam tshuam los ntawm caj ces tab sis kuj los ntawm ib puag ncig yam. Yog hais tias cov noob caj noob ces muaj cov txiaj ntsig siab ntawm cov mis nyuj, nws tuaj yeem cuam tshuam los ntawm ib puag ncig yam xws li pasture zoo, noj tsis txaus, huab cua huab cua, kab mob, thiab lwm yam.
Qhov kev faib tawm zaus ntawm tus yam ntxwv uas nthuav tawm qhov hloov pauv tas mus li yog qhov kev faib tawm ib txwm muaj nrog lub tswb zoo li qub. Nyob rau hauv xws li ib tug nkhaus, qhov nruab nrab, hom thiab nruab nrab yog suav tias yog tib yam. Qhov siab ntawm tib neeg, qhov hnyav, tes ncua thiab khau loj yog ob peb yam piv txwv ntawm kev hloov pauv tas mus li.
Daim duab 01: Daim duab ntawm Kev faib tawm ntawm kev hloov pauv txuas ntxiv
Raws li pom hauv daim duab saum toj no, kev hloov pauv tsis tu ncua hloov pauv nyob ib puag ncig (txhais tau) ntawm hom. Qhov kev hloov pauv no qhia tau hais tias lub tswb zoo li nkhaus nkhaus hauv cov neeg. Kev hloov pauv tsis tu ncua yog qhov tshwm sim, thiab lawv tsis cuam tshuam cov kab mob caj ces. Ntxiv mus, cov kev hloov pauv no yog tshwm sim los ntawm kev muaj feem cuam tshuam los ntawm polygenic thiab feem ntau cuam tshuam los ntawm ib puag ncig cuam tshuam.
Kev hloov pauv tsis tu ncua yog dab tsi?
Qee tus yam ntxwv ntawm cov tib neeg hauv cov pej xeem tuaj yeem pom muaj qee yam kev hloov pauv. Cov tib neeg no muaj qhov txawv txav hauv lawv yam tsis muaj qhov nruab nrab ntawm cov yam ntxwv tshwj xeeb. Cov ntshav hauv tib neeg yog ib qho piv txwv. Hauv tib neeg cov ntshav, tsuas yog plaub pawg ntshav tuaj yeem ua tau (A, B, AB, thiab O). Txij li thaum tsis muaj qhov tseem ceeb nruab nrab muaj nyob rau tib neeg ABO cov ntshav pab pawg, nws raug suav tias yog kev hloov pauv tsis tu ncua. Kev hloov pauv tsis tu ncua yog txiav txim siab los ntawm ib lub noob lossis ib qho ntawm cov noob me me. Qhov tshwm sim phenotypic ntawm lawv feem ntau tsis cuam tshuam vim yog ib puag ncig.
Kev hloov pauv tsis tu ncua tsis qhia qhov kev faib tawm ib txwm. Nws tsis tsim ib qho nkhaus thiab tuaj yeem sawv cev tsuas yog siv daim duab bar xwb. Qhov nruab nrab lossis txhais tau tias tsis tuaj yeem pom nyob rau hauv qhov kev hloov pauv tsis tu ncua, tsis zoo li qhov hloov pauv tas mus li. Cov kev hloov pauv no yog tsim los ntawm kev hloov pauv hauv genome lossis cov noob caj noob ces. Yog li ntawd, lawv cuam tshuam cov caj ces. Txawm li cas los xij, cov kev hloov no tshwm sim qee zaus hauv cov neeg. Qee qhov piv txwv ntawm kev hloov pauv tsis tu ncua suav nrog tus nplaig dov, ntiv tes luam, xim qhov muag, pawg ntshav, thiab lwm yam.
Daim duab 02: Kev hloov pauv tsis tu ncua - Tus nplaig Rolling
Dab tsi yog qhov zoo sib xws ntawm Nruam thiab tsis sib xws?
Kev hloov pauv tsis tu ncua thiab tsis tu ncua tshwm sim hauv cov pej xeem lossis hom
Dab tsi yog qhov txawv ntawm qhov txuas txuas ntxiv thiab tsis txuas ntxiv?
Nruam vs Tsis Muaj Kev Hloov pauv |
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| Kev hloov pauv tsis tu ncua yog qhov kev hloov pauv uas tsis muaj kev txwv ntawm tus nqi uas tuaj yeem tshwm sim hauv cov pejxeem. | Kev hloov pauv tsis tu ncua yog ib qho kev hloov pauv uas muaj cov pab pawg sib txawv rau cov kab mob ua ke. |
| Kev hloov pauv tsis tu ncua muaj qhov kev xav tau, | Txoj kev taw qhia ntawm kev hloov pauv tsis tu ncua yog qhov tsis tau pom dua. |
| Examples | |
| Piv txwv ntawm kev hloov pauv tsis tu ncua suav nrog qhov siab, qhov hnyav, lub plawv dhia, ntiv tes ntev, nplooj ntev, thiab lwm yam. | Piv txwv ntawm kev hloov pauv tsis tu ncua suav nrog tus nplaig dov, ntiv tes luam tawm, xim qhov muag, thiab pawg ntshav. |
| Mean or Average | |
| Kev hloov pauv tsis tu ncua hloov pauv nyob ib puag ncig lossis qhov txhais tau ntawm hom. | Kev hloov pauv tsis tu ncua tsis muaj qhov nruab nrab lossis txhais tau tias. |
| Kev hloov pauv tsis tu ncua yog tsim los ntawm kev hla dhau, kev ywj pheej thiab kev sib xyaw ua ke ntawm gametes thaum fertilization. | Kev hloov pauv tsis tu ncua yog tsim los ntawm kev hloov pauv hauv genome. |
| Kev hloov pauv tsis tu ncua yog muaj nyob hauv cov pejxeem. | Kev hloov pauv tsis tu ncua txhim kho ib ntus. |
| Influence on Genetic System | |
| Kev hloov pauv tsis tu ncua tsis cuam tshuam rau cov kab mob caj ces ntawm lub cev. | Cov kab mob caj ces cuam tshuam los ntawm kev hloov pauv tsis tu ncua. |
| Kev hloov pauv ib puag ncig ib qho txhais tau | |
| Kev hloov pauv txuas ntxiv hloov pauv ib puag ncig ib puag ncig lossis qhov nruab nrab ntawm hom. | Mean tsis muaj nyob rau hauv kev hloov pauv tsis tu ncua. |
| Results | |
| Kev hloov pauv tsis tu ncua ua rau muaj kev hloov pauv ntawm cov pej xeem tab sis nws tsis tuaj yeem tsim hom tshiab. | Kev hloov pauv tsis tu ncua yog qhov tseem ceeb hauv kev tsim cov kev hloov pauv tas mus li thiab hauv cov txheej txheem ntawm evolution. |
| Duab Sawv Cev | |
| Thaum qhov kev hloov pauv tsis tu ncua yog sawv cev rau cov duab, nws muab ib qho kev faib tawm nkhaus nrog lub tswb zoo meej. | Tsis muaj nkhaus yog tsim nyob rau hauv ib tug graphical sawv cev ntawm discontinuous variation. |
Summary – Nruam vs Nruam Variation
Variations yog cov yam ntxwv sib txawv uas muaj nyob rau hauv cov kab mob ntawm ib tug natural pejxeem los yog hom. Kev hloov pauv tuaj yeem yog ob hom sib txawv: kev hloov pauv tsis tu ncua thiab kev hloov pauv tsis tu ncua. Ob hom kev hloov pauv muaj ntau qhov sib txawv. Kev hloov pauv tsis tu ncua yog ib qho kev koom tes hauv cov txheej txheem ntawm evolution. Qhov sib txawv tseem ceeb ntawm kev hloov pauv tsis tu ncua thiab tsis tu ncua yog qhov kev hloov pauv tas mus li tsis muaj qhov txwv ntawm tus nqi uas tuaj yeem tshwm sim hauv cov pej xeem thaum qhov kev hloov pauv tsis tu ncua muaj cov pab pawg sib txawv rau cov kab mob.
Download PDF Version of Continuous vs Discontinuous Variation
Koj tuaj yeem rub tawm PDF version ntawm kab lus no thiab siv nws rau offline hom phiaj raws li daim ntawv ceeb toom. Thov rub tawm PDF version ntawm no Qhov txawv nruab nrab ntawm qhov txuas txuas ntxiv thiab qhov hloov pauv tsis tu ncua.
