Meiosis I: Telophase
As in mitosis, the nuclear envelope reforms during telophase. The resultant nuclei contain one replicated chromosome of each homologous pair; sister chromatids remain attached. This separation of a homologous pair reduces the number of chromosomes in daughter cells from 2N (diploid) to 1N (haploid). Therefore, meiosis I is called the reductional division.
Chromsomes
As in mitosis, the nuclear envelope reforms during telophase. The resultant nuclei contain one replicated chromosome of each homologous pair; sister chromatids remain attached. This separation of a homologous pair reduces the number of chromosomes in daughter cells from 2N (diploid) to 1N (haploid). Therefore, meiosis I is called the reductional division.
Nuclear envelopes
As in mitosis, the nuclear envelope reforms during telophase. The resultant nuclei contain one replicated chromosome of each homologous pair; sister chromatids remain attached. This separation of a homologous pair reduces the number of chromosomes in daughter cells from 2N (diploid) to 1N (haploid). Therefore, meiosis I is called the reductional division.
Cleavage furrow >
The cleavage furrow, marking the eventual separation site of the daughter cells, is formed by a contractile ring composed of actin and myosin filaments. Interaction between the filaments tightens the ring and eventually pinches the cell into two daughter cells.
Contractile ring
The cleavage furrow, marking the eventual separation site of the daughter cells, is formed by a contractile ring composed of actin and myosin filaments. Interaction between the filaments tightens the ring and eventually pinches the cell into two daughter cells.
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