Last Updated:2025/12/02
(biology) The system that determines the sex of offspring among grasshoppers, crickets, cockroaches, and some other insects, in which females have two sex cells (XX) and males have only one sex cell (X0, or simply X; the 0 signifies the lack of another X).
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X0 system
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Source Word
X0 system
Proper noun
Japanese Meaning
昆虫(バッタ、コオロギ、ゴキブリなど)の性決定システム。メスは2つの性染色体XXを持ち、オスは1つのXのみを持つ(または単にXと表記され、0はもう一つのXが存在しないことを示す)。