In metaphase I of meiosis, homologous pairs align at the metaphase plate, each attaching to a separate spindle fiber. Anaphase I sees homologous pairs separating (disjunction) towards opposite poles. Telophase I results in new nuclear membranes forming around each set of chromosomes, which still consist of two sister chromatids.
Nella meiosi, la metafase I allinea le coppie omologhe alla piastra metafasica, con ogni coppia attaccata a un diverso filamento del fuso. Nell'anafase I, le coppie omologhe si separano (disgiunzione) e migrano verso i poli opposti. Durante la telofase I, si formano nuove membrane nucleari attorno a ciascun set di cromosomi, che ancora consistono in due cromatidi.
| Text | Meiosis: During metaphase I homologous pairs(tetrads) align at the metaphase plate, & each pair attaches to a separate spindle fiber by its kinetochore. During anaphase I, homologous pairs separate and are pulled to opposite poles of the cell in a process called disjunction During disjunction, the homologous chromosomes of fraternal/material separate & either chromosome can end up in either daughter cell the separating of two homologous chromosomes is called segregation Meiosis: During the period of interkinesis, the chromosomes may partially uncoil Meiosis: during telophase I a nuclear membrane forms around each new nucleus & each chromosome still consists of two sister chromatids joined at the centromere; haploid |
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Tags: biology_2
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