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Study reveals two non-inherited genetic factors influencing human 1:1 sex ratio through X and Y chromosome distribution.
A study by University of Michigan researchers Siliang Song and Jianzhi Zhang investigates the human 1:1 sex ratio, identifying two genetic variants affecting it, which are not inherited.
Unlike many animals with skewed ratios, humans maintain this balance through X and Y chromosome distribution in sperm and eggs.
The findings suggest that evolutionary and statistical mechanisms, along with human monogamy, contribute to this equilibrium, despite high genetic variability.
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El estudio revela dos factores genéticos no heredados que influyen en la proporción de sexo humano 1:1 a través de la distribución cromosómica X e Y.