Thaum lub sijhawm faib cell, nws yog qhov tseem ceeb uas DNA tseem nyob ruaj khov thiab sib npaug ntawm cov hlwb. Chromosomes yog ib feem tseem ceeb ntawm cov txheej txheem uas ua kom DNA tau raug theej thiab muab faib rau hauv feem ntau ntawm cov cell faib.
chromosome yog dab tsi thiab vim li cas nws tseem ceeb?
Chromosomes yog cov qauv zoo li cov qauv uas DNA tau ntim nruj rau hauv cov nucleus. DNA yog coiled nyob ib ncig ntawm cov proteins hu ua histones, uas muab cov qauv kev txhawb nqa. Chromosomes pab xyuas kom meej tias DNA tau rov ua dua thiab faib kom tsim nyog thaum faib cell
Lub luag haujlwm tseem ceeb ntawm chromosome yog dab tsi?
Chromosome Function
Chromosomes nqa cov txheej txheem caj ces DNA uas yog lub luag haujlwm muab cov yam ntxwv ntawm caj ces thiab cov ntaub ntawv caj ces rau ntau lub hlwb. Lub luag haujlwm ntawm tes yog qhov tseem ceeb rau kev loj hlob thiab kev ciaj sia ntawm cov kab mob nyob.
Vim li cas kev kawm chromosomes tseem ceeb?
Chromosomes yog cov nplaum zoo li cov qauv hauv nruab nrab ntawm txhua lub cell hauv lub cev. Txhua lub cell muaj 46 chromosomes pawg hauv 23 khub. Thaum ib qho chromosome txawv txav, nws tuaj yeem ua rau muaj teeb meem kev noj qab haus huv hauv lub cev. Kev ntsuam xyuas tshwj xeeb hu ua chromosome kev tshawb fawb tuaj yeem saib chromosome kom pom tias tus neeg muaj teeb meem dab tsi.
Vim li cas chromosomes tseem ceeb ntawm peb lub cev yam ntxwv?
Koj cov chromosomes muaj cov qauv qhia rau koj lub cev - koj cov noob Yuav luag txhua lub xov tooj ntawm tib neeg lub cev muaj cov qauv qauv no, feem ntau khaws cia rau hauv ib lub hnab tshwj xeeb hauv lub cell hu ua cov nucleus. Chromosomes yog cov kab ntev ntawm cov tshuaj hu ua deoxyribonucleic acid (DNA).
