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Sex ratios

Description
Sex Ratios can affect population dynamics
Naturally occurring sex ratios for humans slightly favour males (100 females born to 106 males)
In China, 107 boys were reported for 100 girls
Cultural gender preferences, combined with the government’s one-child policy, led to selective abortion of female fetuses
Had the undesirable social consequences of many single Chinese men
Teenage girls were kidnapped and sold as brides
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