ELI5: Explain Like I'm 5

Sperm sorting

Sperm sorting is a way to pick out certain types of sperm with a machine that looks at the sperm under a microscope. The machine can tell the difference between X-sperm (sperm that make baby boys) and Y-sperm (sperm that make baby girls) based on size. This technology can help couples choose the gender of their baby if they want a specific gender.
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