Scelta multipla
At the end of telophase II and cytokinesis in meiosis, how many daughter cells are produced from a single original cell?
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9. Mitosis and Meiosis
Meiosis
Scelta multipla
During which stage of meiosis do homologous chromosomes synapse and crossing over occurs?
A
Prophase I
B
Telophase I
C
Metaphase I
D
Anaphase II
Guida verificata passo dopo passo1
Recall the stages of meiosis and their key events, focusing on Prophase I, Metaphase I, Anaphase I, Telophase I, and the stages of Meiosis II.
Understand that synapsis is the pairing of homologous chromosomes, which is a unique event that occurs only during Prophase I of meiosis.
Recognize that crossing over, the exchange of genetic material between homologous chromosomes, also takes place during Prophase I, specifically in the pachytene substage.
Note that Metaphase I involves the alignment of homologous chromosome pairs at the metaphase plate, but synapsis and crossing over have already occurred by this point.
Conclude that since synapsis and crossing over happen together, the correct stage is Prophase I.
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