Multiple Choice
Which of the following lists the correct phases of the uterine (menstrual) cycle in order?
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11. Cell Division
Introduction to Cell Division
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In which process of cell division do the stages prophase, metaphase, anaphase, and telophase (PMAT) occur twice?
A
Cytokinesis
B
Mitosis
C
Binary fission
D
Meiosis
Verified step by step guidance1
Understand the question: The problem is asking about a process of cell division where the stages prophase, metaphase, anaphase, and telophase (PMAT) occur twice. This is a key characteristic of meiosis.
Recall the definition of meiosis: Meiosis is a type of cell division that reduces the chromosome number by half, producing four genetically distinct haploid cells. It involves two rounds of division: meiosis I and meiosis II.
Break down the stages of meiosis: In meiosis I, PMAT occurs for the first time, separating homologous chromosomes. In meiosis II, PMAT occurs again, separating sister chromatids. This is why PMAT happens twice in meiosis.
Compare meiosis to other processes: Mitosis involves only one round of PMAT, resulting in two identical diploid cells. Binary fission is a simpler form of cell division in prokaryotes, and cytokinesis is the physical division of the cytoplasm, not a process involving PMAT.
Conclude that the correct answer is meiosis, as it is the only process where PMAT occurs twice, once in meiosis I and once in meiosis II.
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