Brain's 'gender' may be quite flexible: Mechanism that plays key role in sexual differentiation of brain

During prenatal development, the brains of most animals, including humans, develop specifically male or female characteristics. But scientists have known little about the details of how this differentiation occurs. Now, a new study has illuminated details about this process. Researchers succeeded in transforming the brain of a female rat after an important developmental window had closed, giving it the characteristics of a male rat brain.

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