Question

Please explain the uniqueness of: Prophase I; Metaphase I; Anaphase I; and Telophase I.

Answer 1

Like mitosis, meiosis also has distinct stages called prophase, metaphase, anaphase, and telophase. A key difference, however, is that during meiosis, each of these phases occurs twice — once during the first round of division, called meiosis I, and again during the second round of division, called meiosis II.

Meaning of Prophase I, Metaphase I, Anaphase I, and Telophase I.

• Prophase is the first stage of cell division, before metaphase, during which the chromosomes become visible as paired chromatids and the nuclear envelope disappears. The first prophase of meiosis includes the reduction division.

• Metaphase is the second stage of cell division, between prophase and anaphase, during which the chromosomes become attached to the spindle fibers.

• Anaphase is the stage of meiotic or mitotic cell division in which the chromosomes move away from one another to opposite poles of the spindle.
• Telophase is the final phase of cell division, between anaphase and interphase, in which the chromatids or chromosomes move to opposite ends of the cell and two nuclei are formed.

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