Are egg cells in aging primates protected from mutations?

New mutations occur at increasing rates in the mitochondrial genomes of developing egg cells in aging rhesus monkeys, but the increases appear to plateau at a certain age and are not as large as those seen in non-reproductive ...

Gene triggers male sterility in tomato plants

Despite its culinary versatility, the humble tomato isn't known for being mysterious. But there's still plenty to learn: researchers from Japan have discovered the gene underlying male sterility in these plants.

Pack rat nests offer first look at ancient insect DNA

For many years, scientists have been extracting DNA from the bones of ancient humans, humanoids and animals to paint a picture of evolution and species movement. Despite what's been portrayed in the movie "Jurassic Park"—in ...

Nuclear DNA from sediments helps unlock ancient human history

The field of ancient DNA has revealed important aspects of human evolutionary past, including relationships with Denisovans and Neandertals. These studies have relied on DNA from bones and teeth, which store DNA and protect ...

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