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What determines whether an axolotl will grow up to be male or female?

Axolotls have genetic sex-determination - a locus on an axolotl chromosome determines whether an axolotl is male or female.

In salamanders, the sex determining mechanism is referred to as ZZ/ZW and the heterogametic sex is female.

Fun Facts

What types of research are axolotls used for?

Salamanders are attracting renewed interest from biomedical researchers because of their unrivaled ability to regenerate entire organ systems.

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