Final answer:
If fertilization occurs, Meiosis I is completed and Meiosis II is arrested. If fertilization does not occur, the cells will remain arrested at Meiosis II.
Step-by-step explanation:
The status of Meiosis I and Meiosis II depends on whether fertilization occurs. If fertilization occurs, Meiosis I is completed and Meiosis II is arrested. This means that the homologous chromosomes have separated in Meiosis I and the resulting cells now have half the number of sister chromatids as a diploid cell.
However, Meiosis II is paused and will only continue if fertilization occurs. If fertilization does not occur, the cells will remain arrested at Meiosis II.