Multiple Choice
Which of the following best explains how Meiosis I and Meiosis II contribute to genetic variation in sexually reproducing organisms?
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9. Mitosis and Meiosis
Meiosis
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During meiosis, how many times does a cell undergo the sequence of prophase, metaphase, anaphase, and telophase (PMAT)?
A
One time
B
Two times
C
Four times
D
Three times
Verified step by step guidance1
Understand that meiosis consists of two distinct rounds of cell division, called meiosis I and meiosis II.
Recognize that each round of meiosis includes the full sequence of phases: prophase, metaphase, anaphase, and telophase (PMAT).
In meiosis I, homologous chromosomes are separated, and the cell goes through PMAT once.
In meiosis II, the sister chromatids are separated, and the cell again goes through PMAT a second time.
Therefore, the cell undergoes the PMAT sequence two times during meiosis.
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