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 ...

Definition: DNA amplification is the laboratory process of making many copies of a selected DNA sequence from a very small starting amount. It allows DNA that would otherwise be too scarce to detect ...

Embryonic stem (ES) cells are pluripotent stem cells that can produce all cell types of an organism. ES cells proliferate rapidly and have been thought to experience high levels of intrinsic ...

A new model developed at Tel Aviv University offers a possible solution to the scientific question of why neutral sequences, sometimes referred to as "junk DNA," are not eliminated from the genome of ...

Cells have evolved careful checks to ensure DNA is copied only once, but how they switch on replication at the right moment ...