Chromosomes become visible during prophase, the stage of mitosis during which the nuclear envelope disappears and the chromosomes shorten and condense. After prophase, chromosomes remain visible until mitosis completes. More »

During the prophase stage of cell division, chromosomes begin to condense, coil and fold, making them visible under a light microscope. When the duplicated chromosomes continue to coil, the chromosomes are shortened and ... More »

Chromosomes first become visible during prophase in mitosis, and they are fully visible during metaphase and anaphase. They lose their visibility during telophase and are not visible during cytokinesis, which follows mit... More »

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In prophase I the nuclear envelope disintegrates, and the chromosomes within condense and cross over. In prophase II there are half as many chromosomes, and these are sometimes already condensed from the previous process... More »

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Chromatin condenses to form chromosomes during prophase of mitosis, and during prophase I and prophase II of meiosis. Chromatin is a dense, complex fibrous structure composed of associated proteins and molecules of deoxy... More »

The chromosomes in a cell's nucleus coil during prophase of mitosis in order to facilitate mobility. The chromosomes and the DNA become coiled and condensed during prophase. More »

The mitosis of onion root tips involves the process of cell division in its various phases, such as interphase, prophase, anaphase, metaphase and telophase. In biology labs, students use onion root tips to observe these ... More »