Qhov sib txawv tseem ceeb ntawm somatic variation thiab germinal variation yog somatic variation yog cov caj ces variation tshwm sim nyob rau hauv somatic hlwb thaum germinal variation yog cov genetic variation tshwm sim nyob rau hauv cov kab mob xws li qe los yog phev.
Kev hloov pauv caj ces yog hais txog cov txheej txheem ntawm kev hloov pauv cov caj ces ntawm cov kab mob lossis qhov sib txawv ntawm DNA ntu ntawm cov tib neeg hauv cov pej xeem. DNA sequences yuav hloov nrog lub sij hawm nyob rau hauv ib tiam dhau ib tiam. Genetic recombination yog ib qho ntawm cov txheej txheem tseem ceeb uas ua rau muaj kev hloov pauv caj ces. Tsis tas li ntawd, kev hloov pauv kuj tuaj yeem ua rau muaj kev hloov pauv caj ces. Cov noob caj noob ces, cov kab mob multicellular muaj ob hom cell loj; somatic hlwb thiab kab mob hlwb. Li no, kev hloov caj ces yog ob hom; lawv yog cov somatic variation thiab germinal variation. Yog tias qhov kev hloov pauv caj ces tshwm sim hauv cov hlwb somatic, peb hu nws qhov kev hloov pauv hloov pauv, thiab yog tias qhov kev hloov pauv caj ces tshwm sim hauv cov kab mob, peb hu nws cov kab mob sib txawv. Somatic variations feem ntau yog tsis tau txais txiaj ntsig thaum cov kab mob sib txawv feem ntau yog cov cuab yeej cuab tam.
Somatic Variation yog dab tsi?
Thaum qhov kev hloov pauv caj ces tshwm sim hauv cov hlwb somatic (tag nrho lwm cov hlwb tshwj tsis yog cov kab mob), peb hu nws ua kev hloov pauv hloov pauv lossis hloov pauv tau. Feem ntau, somatic variations tsis muaj teeb meem.
Daim duab 01: Somatic Variation
Tsis tas li ntawd, lawv tsis tau txais txiaj ntsig mus rau tiam tom ntej tsis zoo li cov kab mob sib txawv thiab tsis tseem ceeb thiab. Tsis tas li ntawd, kev hloov pauv ntawm somatic tsis ua rau muaj kev cuam tshuam loj heev. Qhov laj thawj tseem ceeb rau qhov kev hloov pauv ntawm somatic yog qhov cuam tshuam ib puag ncig xws li raug hluav taws xob ultraviolet lossis qee yam tshuaj.
Germinal Variation yog dab tsi?
Germinal variation is the genetic variation that happens in germ cells. Nws tseem hu ua blastogenic variation. Cov khoom siv caj ces ntawm gametes lossis cov kab mob hauv cov kab mob tau hloov pauv vim muaj ntau yam laj thawj. Cov kev hloov caj ces no tuaj yeem tshwm sim hauv cov poj koob yawm txwv thiab xa mus rau cov xeeb ntxwv. Tsis tas li ntawd, lawv tuaj yeem tshwm sim tam sim ntawd vim qhov ua yuam kev hauv kev faib tawm ntawm tes. Ib qho ntawm cov laj thawj tseem ceeb rau kev hloov pauv ntawm cov kab mob yog cov recombination. Thaum lub sij hawm sib deev cell tsim los ntawm meiosis, chromosomal abnormalities tuaj yeem tshwm sim vim tsis muaj kev hloov pauv, thiab lwm yam. Tsis tas li ntawd, hluav taws xob kuj tuaj yeem ua rau cov kab mob sib txawv.
Daim duab 02: Germinal Variation
Tsis zoo li kev hloov pauv ntawm somatic uas tuag nrog kev tuag ntawm tus neeg, kab mob sib txawv tsis tuag. Nws yog heritable vim nws tshwm sim nyob rau hauv cov kab mob hlwb. Tsis tas li ntawd, kev sib txawv ntawm cov kab mob ua rau tuag taus xws li ntau yam kab mob thiab kab mob caj ces. Tsis tas li ntawd, cov kab mob sib txawv yog qhov kev hloov pauv tseem ceeb thiab tseem ceeb vim lawv tau txais los ntawm niam txiv mus rau cov xeeb ntxwv.
Dab tsi yog qhov zoo sib xws ntawm Somatic Variation thiab Germinal Variation?
- Somatic variation thiab germinal variation yog ob hom kev hloov caj ces uas tau categorized raws li hom cell.
- Ob hom tshwm sim vim qhov hloov pauv ntawm cov khoom siv caj ces.
- Lawv ua rau muaj ntau yam kab mob.
Qhov txawv ntawm Somatic Variation thiab Germinal Variation yog dab tsi?
Raws li hom xovtooj ntawm tes, muaj ob hom kev hloov pauv caj ces xws li somatic variation thiab germinal variation. Kev hloov pauv ntawm somatic tshwm sim hauv cov hlwb somatic thaum cov kab mob sib txawv tshwm sim hauv cov kab mob. Yog li, qhov no yog qhov sib txawv tseem ceeb ntawm somatic variation thiab germinal variation. Tsis tas li ntawd, kev hloov pauv ntawm somatic tsis yog cuab yeej cuab tam thaum cov kab mob sib txawv yog cov cuab yeej cuab tam. Li no, nws yog lwm qhov sib txawv ntawm somatic variation thiab germinal variation. Tsis tas li ntawd, kev hloov pauv ntawm somatic tsis tseem ceeb, thiab lawv tsis cuam tshuam nrog kev hloov pauv ntawm hom. Ntawm qhov tod tes, germinal variations yog qhov tseem ceeb, thiab lawv muab cov khoom siv raw rau evolution. Yog li, qhov no yog lwm qhov sib txawv ntawm somatic variation thiab germinal variation.
Cov hauv qab no infographic ntawm qhov sib txawv ntawm somatic variation thiab germinal variation muab ntau qhov sib txawv ntawm ob qho tib si.
Summary – Somatic Variation vs Germinal Variation
Thaum qhov kev hloov pauv caj ces tshwm sim hauv cov hlwb somatic, peb hu nws qhov kev hloov pauv ntawm somatic. Ntawm qhov tod tes, thaum qhov kev hloov pauv caj ces tshwm sim hauv cov hlwb sib deev, peb hu nws cov kab mob sib txawv. Li no, qhov sib txawv tseem ceeb ntawm somatic variation thiab germinal variation nyob ntawm hom cell. Tsis tas li ntawd, kev hloov pauv ntawm somatic tsis tau txais los ntawm cov niam txiv thiab tsis tau kis mus rau lwm tiam neeg. Txawm li cas los xij, cov kab mob sib txawv tau txais los ntawm cov poj koob yawm txwv thiab tseem kis mus rau lwm tiam neeg. Yog li, qhov no yog qhov txawv ntawm somatic variation thiab germinal variation.
