Multiple Choice
Homologous pairs of chromosomes align opposite of each other at the equator of a cell during which stage of meiosis?
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9. Mitosis and Meiosis
Meiosis
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During which stage of meiosis are homologous chromosomes aligned at the middle of the spindle?
A
Metaphase I
B
Anaphase I
C
Metaphase II
D
Prophase I
Verified step by step guidance1
Recall the main stages of meiosis: Prophase I, Metaphase I, Anaphase I, Telophase I, followed by Meiosis II stages (Prophase II, Metaphase II, Anaphase II, Telophase II).
Understand that during meiosis I, homologous chromosomes pair up and separate, while during meiosis II, sister chromatids separate.
Identify that the alignment of chromosomes at the spindle equator (middle) occurs during metaphase stages.
Recognize that in Metaphase I, homologous chromosome pairs (tetrads) align at the metaphase plate, whereas in Metaphase II, individual chromosomes (sister chromatids) align.
Conclude that the stage where homologous chromosomes are aligned at the middle of the spindle is Metaphase I.
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