Final answer:
Cells are arrested at the metaphase stage of the cell cycle for karyotyping because chromosomes are most visible, allowing detailed observation.
Step-by-step explanation:
Cells are typically arrested at the metaphase stage of the cell cycle for use in routine karyotyping. During metaphase, chromosomes are aligned at the cell's equatorial plate, which is the most condensed and visible stage, making it ideal for karyotyping. This stage allows for the observation and examination of the arrangement, number, and structure of chromosomes. The correct order of the stages of mitosis is prophase, metaphase, anaphase, and telophase, followed by cytokinesis. Mitosis allows for the generation of two daughter cells with identical genetic material.