객관식
During which phase of meiosis do sister chromatids separate?
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12. Meiosis
Introduction to Meiosis
객관식
Which event occurs in meiosis but not in mitosis?
A
Formation of the mitotic spindle
B
Separation of sister chromatids
C
Cytokinesis
D
Crossing over of homologous chromosomes
검증된 단계별 안내1
Understand the basic difference between meiosis and mitosis: Mitosis is a process of cell division that results in two genetically identical daughter cells, while meiosis results in four genetically diverse daughter cells.
Recognize that meiosis involves two rounds of division: meiosis I and meiosis II, whereas mitosis involves only one round of division.
Identify the unique events in meiosis I: During prophase I of meiosis, homologous chromosomes pair up and exchange genetic material in a process called crossing over. This does not occur in mitosis.
Understand the significance of crossing over: Crossing over increases genetic diversity by allowing the exchange of genetic material between homologous chromosomes, which is crucial for evolution and adaptation.
Compare the events listed in the problem: Formation of the mitotic spindle, separation of sister chromatids, and cytokinesis occur in both mitosis and meiosis, but crossing over is unique to meiosis.
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