An idea inspired by the "X element" By the 1880s, scientists had established methods for staining chromosomes so that they could be easily visualized using a simple light microscope. With this ...

Among the many marvels of life is the cell's ability to divide and thus enable organisms to grow and renew themselves. For ...

But scientists are learning that it’s not so simple. Dubal says that about 30% of the genes on the so-called silent X chromosome in people are active — although that percentage varies among women.