Q. What is the meaning of astigmatism? A. Some information from the Mayo Clinic: “Astigmatism is a common and generally treatable imperfection in the curvature of your eye that causes blurred distance ...

A: Their fingerprints are very similar, but not identical. Evidently after a fertilized egg splits in the womb to form identical twins, their fingerprints develop with slight differences. Q: Would a ...

Identical, or monozygotic, twins develop from the same fertilized egg that splits into two. These twins are the same sex and share the same genes. Sometimes called paternal twins, identical twins ...

When we think of identical twins, we often imagine mirror images — same face, same smile and perhaps even the same talents. But what surprises many is that these genetic carbon copies can have ...

Metastable epialleles may sound like complex science, but they help explain why identical animals can still look and act differently. For years, scientists asked why two mice with identical DNA could ...

Twins share a special bond, look alike, and sometimes even seem to finish each other's sentences. Twins share a special bond, look alike, and sometimes even seem to finish each other's sentences. But ...

From Romulus and Remus—the myth of the twin brothers who founded the city of Rome—to the synchronized speech of Australia's "Twinnies" Paula and Brigette Powers, identical siblings have long inspired ...