Ceeb toom: DNA replication tshwm sim tsuas yog ib zaug hauv meiosis thiab mitosis txawm hais tias tus naj npawb ntawm tes faib yog ob hauv meiosis thiab ib qho hauv mitosis uas ua rau cov lej sib txawv. ntawm cov hlwb haploid nyob rau hauv ob qho tib si txheej txheem.
Yuav ua li cas DNA rov ua dua hauv meiosis?
Lub sijhawm meiosis, DNA yuav rov ua dua zero times, vim lub hom phiaj ntawm meiosis yog tsim gametes thiab cais DNA ua plaub tus ntxhais.
Puas yog DNA replication tshwm sim hauv meiosis 1 lossis 2?
Meiosis II pib nrog 2 lub hlwb haploid uas txhua chromosome yog tsim los ntawm ob tug muam chromatids txuas. DNA replication tsis tshwm sim thaum pib ntawm meiosis II. Cov viv ncaus chromatids tau sib cais, tsim 4 cov noob caj noob ces sib txawv haploid.
YPuas DNA rov ua dua hauv meiosis thiab mitosis?
Yog, DNA rov ua dua hauv ob qho tib si mitosis thiab meiosis. Hauv meiosis, lub xovtooj ntawm tes raug faib ua ob ntu, piv txwv li meiosis I thiab II. Meiosis I yog txo kev faib thiab meiosis II zoo ib yam li mitosis tab sis DNA replicates ib zaug thaum lub sij hawm meiosis, piv txwv li ua ntej meiosis I nyob rau hauv S theem.
Yuav ua li cas DNA rov ua dua?
DNA replicates nkaus xwb ib zaug hauv txhua lub voj voog ntawm tes (S-theem).
