If the same mechanism exists in humans, it may explain health differences in children conceived by older fathers. fotografixx/E+ via Getty ImagesThe Research Brief is a short take about interesting academic work. The big idea The sperm of older rats differs from that of younger rats in ways that may affect embryo development, according to recently published research. Sperm carries not only genes, but also instructions that determine which genes will be turned on or off in offspring. These direct
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Sperm from older rats passes on fewer active genes to offspring because of epigenetic changes
