Last Updated
：2025/12/02
XY system
Proper noun
Japanese Meaning
生物学における性決定システムの一つ。ヒトや多くの哺乳類、ショウジョウバエなど一部の昆虫、イチョウなど一部の植物で、雌はXXという同一の性染色体構成、雄はXYという異なる性染色体構成を持つシステム。
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(biology) The system that determines the sex of humans, most other mammals, some insects (Drosophila), and some plants (Ginkgo), in which females have two of the same kind of sex cell (XX) and males have two distinct sex cells (XY).
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XY system
Researchers studying sex determination often refer to the XY system as the mechanism by which males and females develop in humans and many other species.
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Researchers studying sex determination often refer to the XY system as the mechanism by which males and females develop in humans and many other species.
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