Researchers have identified several genetic variations associated with the timing of a baby’s first tooth and the number of teeth at age one. The results, published recently in the journal PLoS Genetics, could be important for understanding more about human health than just this rite of passage all babies must go through.
Nascent teeth form [...]

Tags: baby, development, PLOS Genetics, teeth

It may be you’ve heard a rumor that males are on the brink of extinction.
Whatever you may think of that prospect, the rumor is false. But over the past decade, numerous studies have hinted that the Y chromosome, a male necessity, is going the way of the dodo.
Though other studies have suggested this idea may [...]

Tags: Genes, PLOS Genetics, sex chromosomes, X-chromosome, Y-chromosome