Pachytene, tseem hu ua pachynema, yog ib qho ntawm tsib theem ntawm Prophase I hauv meiosis . … Pachytene txhais tau tias yog theem thaum muaj tag nrho cov synaptonemal complex synaptonemal complex Lub synaptonemal complex (SC) yog ib tug protein qauv uas tsim ntawm homologous chromosomes (ob khub niam txiv chromatids) thaum lub sij hawm meiosis thiab yog xav kom kho kom haum xeeb synapsis thiab recombination thaum lub sij hawm meiosis kuv hauv eukaryotes. https://en.wikipedia.org › wiki › Synaptonemal_complex
Synaptonemal complex - Wikipedia
muaj. Thaum lub sij hawm pachytene, homologous chromosomes thicken thiab ua recombinant.
Koj txhais li cas los ntawm pachytene theem?
: theem ntawm meiotic prophase uas tam sim ntawd ua raws li zygotene thiab uas yog tus cwj pwm los ntawm khub chromosomes thickened thiab pom tau muab faib ua chromatids thiab tshwm sim ntawm kev hla dhau.
pachytene tseem ceeb yog dab tsi?
Pachytene encompasses pairing ntawm chromosomes thiab recombination thiab kho DNA, tawm tswv yim tias p53 tswj qee yam ntawm lub voj voog meiotic kom tso cai DNA sib hloov thiab kho.
Dab tsi yog ob theem ntawm kev tshuaj ntsuam?
Cov theem kev tshuaj ntsuam feem ntau yuav tsum tau ua tib zoo kawm txog cov txheej txheem tam sim no, uas txuas ntxiv ob theem: xav tau kev txiav txim siab thiab kev tshuaj ntsuam xyuas.
pachytene txawv ntawm zygotene li cas?
Pachytene yog theem nyob rau hauv qhov kev pauv ntawm cov khoom siv caj ces lossis kev hladhau los ua qhov chaw ntawm cov tsis yog tus muam chromatids ntawm bivalents. Zygotene, ntawm qhov tod tes, yog theem ntawm kev sib koom ua ke ntawm homologous chromosomes siv qhov chaw tsim cov synaptonemal complexes.
