Meiosis does PMAT twice! That means there is prophase I and prophase II. There is metaphase I and metaphase II. If the cartoon below has chromosomes in the middle of the cell, how would you know whether it was in metaphase I or metaphase II?
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In meiosis, how does prophase I differ from prophase II? During prophase I the chromosomes coil up; the chromosomes are not coiled up during prophase II. In prophase I the sister chromatids are attached; in prophase II the sister chromatids are separated. During prophase I chromosomes line up single file in the middle of the cell; during prophase II the chromosomes line up in double file in the middle of the cell. During prophase I there is one diploid cell; during prophase II there are two haploid cells.
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Distinguishing Meiosis I from Meiosis II: How do you know what is meiosis I and what is meiosis II? Here are some hints to help you determine how to identify if a cell is undergoing meiosis I or meiosis II. In prophase I and metaphase I, the chromosomes are found in their homologous pairs. In anaphase I and telophase I, the chromosomes are duplicated (shaped like Xs). Take a look at the picture, and then answer the questions How many chromosomes will be in the gamete produced when this cell has finished meiosis?
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Draw the different stages of Meiosis Interphase Prophase I Metaphase I Anaphase I Telophase I Prophase II Metaphase II Anaphase II Telophase II
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