Ploidy, hauv noob caj noob ces, tus naj npawb ntawm chromosomes tshwm sim hauv lub nucleus ntawm lub xovtooj. Nyob rau hauv ib txwm somatic (lub cev) hlwb, cov chromosomes muaj nyob rau hauv khub. Tus mob hu ua diploidy.
Koj pom ploidy li cas?
Ploidy tuaj yeem yog ntsuas los ntawm tus lej chromosome lossis los ntawm kev ntws cytometry siv DNA index (DI), qhov piv ntawm fluorescence hauv leukemic blasts piv rau cov hlwb ib txwm. Cov hlwb diploid ib txwm muaj 46 chromosomes thiab DI ntawm 1.0, cov hlwb hyperdiploid muaj txiaj ntsig ntau dua, thiab cov hlwb hypodiploid qis dua.
lub xeev ploidy yog dab tsi?
Polyploidy yog lub xeev uas txhua lub hlwb muaj ntau pawg chromosomes dhau qhov txheej txheem, feem ntau 3 lossis ntau dua. … Hauv cov nroj tsuag, qhov no feem ntau tshwm sim los ntawm kev sib koom ua ke ntawm meiotically unreduced gametes, thiab tsis yog los ntawm diploid–diploid hybridization ua raws li chromosome ob npaug.
Ploidy qib hauv biology yog dab tsi?
Mloog cov lus. (PLOY-dee) Tus naj npawb ntawm cov chromosomes hauv ib lub xovtooj ntawm tes lossis cov kabmob. Piv txwv li, haploid txhais tau tias ib txheej thiab diploid txhais tau tias yog ob pawg.
ploidy hauv meiosis yog dab tsi?
Ploidy yog ib lo lus hais txog tus lej ntawm cov chromosomes. … Meiosis, ntawm qhov tod tes, txo tus naj npawb ntawm cov chromosomes los ntawm ib nrab, yog li ntawd thaum gametic recombination (fertilization) tshwm sim lub ploidy ntawm cov niam txiv yuav rov tsim dua. Feem ntau cov hlwb hauv tib neeg lub cev yog tsim los ntawmmitosis.
