The structure of a cell’s nucleus has long served as a visible clue to whether a cell is healthy or affected by disease.

lighting up the DNA "street" of any gene they wanted to study. Under a traditional light microscope, this activity would look like a blurry blob because the movements of DNA are on the order of ...

At first glance, feathers may seem like simple parts of a bird’s body. But if you look closer—under a microscope or through a ...

Compared to standard cytogenetic (cell gene) tests, one advantage of FISH is that it can identify genetic changes that are too small to be seen under a microscope. Another advantage is that FISH ...

Given troves of data about genes and cells ... drew blood from his arm and inspected it under a microscope. Dr. Viault’s red blood cells, which ferry oxygen, had surged 42 percent.

But exactly how much do genes influence longevity ... millimeter long—nematodes can easily be seen wriggling around under a microscope. Being hermaphrodites, they produce both sperm and egg ...