Qhov Tseem Ceeb Qhov Sib Txawv - Kev Sib Txawv Ntawm Tib Neeg vs Environmental Variation
Txhua yam kab mob nyob hauv lub ntiaj teb tsim kev hloov pauv vim yog kev cuam tshuam caj ces lossis ib puag ncig los yog ob qho tib si. Kev hloov ntawm cov noob caj noob ces vim yog cov txiaj ntsig ntawm caj ces txhais tau tias yog kev hloov pauv caj ces thiab qhov kev hloov pauv vim qhov cuam tshuam ib puag ncig yog txhais raws li kev hloov pauv ib puag ncig. Vim tias qhov kev hloov pauv no, cov kab mob no qhia tau tias muaj tus lej tseem ceeb ntawm morphological, tus cwj pwm, thiab biochemical yam ntxwv. Qee qhov kev hloov pauv tuaj yeem txheeb xyuas tam sim, tab sis qee qhov tsis tuaj yeem. Piv txwv li, qee qhov kev hloov pauv morphological xws li qhov siab, qhov muag xim, thiab xim plaub hau thiab lwm yam., yog yooj yim distinguished ntawm cov neeg. Txawm li cas los xij, biochemical thiab qee qhov kev coj cwj pwm txawv (piv txwv li: kev paub, nyiam, thiab lwm yam) yog qhov nyuaj rau txheeb xyuas tau yooj yim. Genetic variation thiab ib puag ncig kev hloov pauv yog ob qho tseem ceeb rau kev xaiv ntuj thiab kev hloov pauv hloov pauv. Txawm li cas los xij, muaj qee qhov sib txawv ntawm txoj kev uas lawv cuam tshuam rau cov kab mob. Qhov sib txawv tseem ceeb ntawm kev hloov pauv caj ces thiab kev hloov ib puag ncig yog qhov kev hloov pauv caj ces feem ntau cuam tshuam rau genotype txawm tias nws tseem cuam tshuam rau phenotype, tab sis kev hloov pauv ib puag ncig feem ntau cuam tshuam rau phenotype. Tsis tas li ntawd, feem ntau ntawm cov kev hloov pauv caj ces tau dhau mus rau tiam tom ntej, tab sis qhov kev hloov pauv ib puag ncig uas hloov pauv cov noob caj ces tsuas yog dhau mus rau tiam tom ntej. Hauv tsab xov xwm no, cia peb tshawb txog qhov sib txawv uas muaj nyob nruab nrab ntawm kev hloov pauv caj ces thiab kev hloov pauv ib puag ncig kom ntxaws ntxiv thaum nkag siab txog cov txiaj ntsig ntawm ob qhov kev hloov pauv hauv kab mob.
Kev hloov pauv caj ces yog dab tsi?
Kev hloov pauv caj ces txhais tau tias yog kev hloov pauv ntawm caj ces vim yog DNA hloov pauv, noob ntws, thiab kev sib deev. Kev hloov pauv caj ces yog qhov tseem ceeb heev los tsim kev hloov pauv ntawm cov tib neeg hauv cov pej xeem uas thaum kawg ua rau kev xaiv ntuj tsim thiab hloov pauv hloov pauv. Vim yog kev hloov pauv ib puag ncig thiab ua tiav hauv cov pej xeem, cov tib neeg yuav tsum tsim kom muaj kev hloov pauv tau zoo dua thiaj li muaj sia nyob. Cov tib neeg uas tau tsim cov kev hloov pauv tau zoo dua yuav muaj sia nyob thiab dhau lawv qhov zoo rau lwm tiam neeg. Kev hloov caj ces tuaj yeem pom ntawm txhua qib caj ces; DNA, chromosomes, noob thiab proteins.
Kev hloov pauv ib puag ncig yog dab tsi?
Cov tib neeg uas muaj tib lub genotype tuaj yeem tsim kev hloov pauv vim muaj kev sib txawv ntawm ib puag ncig xws li huab cua, kev noj haus, kev raug mob ntawm lub cev, kev ua neej, kab lis kev cai, thiab lwm yam. Hom kev hloov pauv no yog hu ua kev hloov pauv ib puag ncig. Qee zaum, kev hloov pauv ib puag ncig muaj zog cuam tshuam rau genotype. Txawm li cas los xij, feem ntau ntawm kev hloov pauv ib puag ncig cuam tshuam rau phenotype. Txawm hais tias ib tus neeg muaj cov noob rau ntau yam phenotypes, ib puag ncig txiav txim siab seb cov phenotypes tsim. Piv txwv li, ib tug neeg yuav tau txais txoj kev xav siab, tab sis kev noj zaub mov tsis zoo thaum lub sij hawm tsim kho yuav ua rau kev loj hlob tsis zoo.
Qhov txawv ntawm Genetic Variation thiab Environmental Variation yog dab tsi?
Cov ntsiab lus ntawm Kev Hloov Pauv thiab Ib puag ncig kev hloov pauv:
Kev hloov pauv caj ces: Kev hloov pauv caj ces vim yog DNA hloov pauv, cov noob ntws, thiab kev sib deev yog hu ua kev hloov pauv caj ces.
Environmental Variation: Environmentally induced variations because of txawv ib puag ncig yam yog hu ua ib puag ncig variations.
Tus yam ntxwv ntawm Kev Hloov Pauv thiab Ib puag ncig kev hloov pauv:
Passing On:
Kev hloov pauv caj ces: Feem ntau ntawm cov caj ces hloov pauv mus rau lwm tiam neeg.
Kev Hloov Ib puag ncig: Qee qhov kev hloov pauv ib puag ncig uas hloov pauv cov noob caj ces tsuas yog dhau mus rau tiam tom ntej.
Effect:
Kev hloov pauv caj ces: Genotype feem ntau cuam tshuam los ntawm kev hloov pauv caj ces. Genetic variation kuj cuam tshuam phenotype.
Environmental Variation: Phenotype cuam tshuam feem ntau los ntawm kev hloov pauv ib puag ncig.
