Summer vacation is a time for fun and play, but can also be a time for learning. Parents have the added benefit of teaching their children outside a classroom environment, taking the pressure off kids ...

The DNA packed inside every human cell contains instructions for life, written in billions of letters of genetic code. Every time a cell divides, the complete code, divided among 46 chromosomes, must ...

Before a cell divides, its DNA is replicated so that each daughter cell inherits the same genetic information. The two copies ...