In synapsis synapsis Synapsis yog kev sib koom ntawm ob chromosomes uas tshwm sim thaum lub sij hawm meiosis Nws tso cai rau kev sib koom ua ke ntawm homologous khub ua ntej lawv sib cais, thiab muaj peev xwm chromosomal crossover ntawm lawv. … Mitosis kuj muaj prophase, tiam sis feem ntau tsis ua khub ntawm ob homologous chromosomes. https://en.wikipedia.org › wiki › Synapsis
Synapsis - Wikipedia
cov noob ntawm cov chromatids ntawm homologous chromosomes tau ua raws nraim nrog ib leeg. Kev sib pauv ntawm chromosome ntu ntawm cov uas tsis yog-viv ncaus homologous chromatids tshwm sim thiab hu ua hla dhauCov xwm txheej crossover yog thawj qhov kev hloov pauv caj ces tsim los ntawm meiosis.
Kev sib pauv ntawm cov khoom siv caj ces ntawm Nonsister chromatids yog dab tsi?
Chromosomal crossover, lossis hla dhau, yog kev sib pauv ntawm cov khoom siv caj ces thaum muaj kev sib deev ntawm ob homologous chromosomes 'tsis yog tus muam chromatids uas ua rau cov chromosomes recombinant.
Dab tsi tshwm sim ntawm Nonsister chromatids ntawm homologous chromosomes?
Crossover tshwm sim ntawm cov tsis yog tus muam chromatids ntawm homologous chromosomes. Qhov tshwm sim yog kev sib pauv ntawm cov khoom siv caj ces ntawm homologous chromosomes. Cov xwm txheej crossover yog thawj qhov kev hloov pauv caj ces hauv cov nuclei tsim los ntawm meiosis.
Pob homologous chromosomes pauv cov khoom siv caj ces ntawm Nonsister chromatids?
Tom qab rov ua dua, txhua tus chromosome muaj ob tus viv ncaus zoo tib yam chromatids, tuav ua ke los ntawm ib lub centromere. … Qhov tseeb tiag, lawv ua khub nruj heev uas cov chromatids nonsister los ntawm homologous chromosomes qee zaum tau pauv cov khoom siv caj ces hauv cov txheej txheem hu ua hla dhau
YPob homologous chromosomes pauv chromatids?
"Txuas" yog hais txog kev sib cais tsis sib xws ntawm alleles ntawm cov caj ces sib txawv raws li lawv qhov sib ze ntawm tib chromosome. Raws li gametes daim ntawv, homologous chromosomes undergo chromatid exchanges, los yog crossovers, thaum lub sij hawm meiosis kuv uas ua rau reciprocal exchanges ntawm genetic khoom hu ua recombination.
