prophase
prophase The first phase of mitosis and meiosis I and meiosis II. In mitosis and the first division of meiosis the chromosomes become visible within the nucleus, coiling up to produce a series of compact spirals. In meiosis I they also undergo pairing during this phase, the phase then being divided into 5 successive stages: leptotene, zygotene, pachytene, diplotene, and diakinesis. The prophase of the second division of meiosis (prophase II) is very similar to prophase of mitosis: the nucleoli and nuclear membrane break down and the chromatids shorten and thicken. Many plants go directly from anaphase I to metaphase II and do not have a prophase II.
prophase
prophase The first stage of cell division, during which chromosomes contract and divide along their length (except for the centromeres) into chromatids. In mitosis, the chromosomes remain separate from each other. In the first division of meiosis, homologous chromosomes become paired (see pairing). By the end of first prophase the two chromosomes begin to move apart.
prophase
prophase The first phase of mitosis and meiosis, divided into prophase I and prophase II, during which the chromosomes become visible within the nucleus, coiling up to produce a series of compact spirals. In the first division of meiosis they also undergo pairing during this phase, the phase then being divided into five successive stages: leptotene, zygotene, pachytene, diplotene, and diakinesis.
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Anaphase , anaphase A stage that occurs once in mitosis and twice in meiosis and that involves the separation of chromosomal material to give two sets of chromo… Spermatocyte , spermatocyte A diploid cell that undergoes meiosis and forms four spermatids. A primary spermatocyte undergoes the first meiotic division to form two… Interkinesis , interkinesis An abbreviated form of interphase occurring between the first and second nuclear divisions of meiosis in some organisms. The chromosomes… Telophase , telophase The fourth and final phase of mitosis and the 2 divisions of meiosis, during which the spindle disappears, nucleoli reappear, the nuclear m… Divide , di·vide / diˈvīd/ • v. 1. separate or be separated into parts: [tr.] consumer magazines can be divided into a number of different categories | [intr.… Cell Division , Definition
The process by which a cell distributes its genetic material (DNA) and cytoplasm to daughter cells.
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In higher organisms, inclu…
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