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X Chromosome

Meaning

The X Chromosome is one of the two sex chromosomes in mammals, carrying a large number of genes essential for both male and female development and function, beyond its primary role in determining biological sex. Its unique genetic structure and regulatory mechanisms mean that its gene dosage profoundly influences a wide array of physiological processes, including brain function, metabolism, and hormonal sensitivity. It is a key determinant of sex-specific differences in health and disease.