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Genes & Cells

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Babies

EQUAL SHOT  Every year, slightly more boys than girls are born. But when egg meets sperm, roughly equal numbers of male and female embryos are conceived, a new study finds.

REGULAR RATE  A genetic analysis suggests that the Ebola virus, shown here in orange, is not evolving as fast as expected.

Iceland Genome Lab

PAINTING A PORTRAIT  Scientists are sequencing the genomes of a large swath of Icelanders to better understand the genetic underpinnings of disease.

Genes & Cells

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