The structure aberration of chromosomes included the translocation, deletion, and isochromosome.

结构畸变涉及易位、缺失和等臂染色体。

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Isochromosome — an abnormal chromosome in which one arm is duplicated (forming two arms of equal length, with the same loci in reverse sequence) and the other arm is missing.

着丝粒在染色体中间，两臂等长的染色体。

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Isochromosome — an abnormal chromosome in which one arm is duplicated (forming two arms of equal length, with the same loci in reverse sequence) and the other arm is missing.

着丝粒在染色体中间，两臂等长的染色体。

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