the DNA that makes up the cell's chromosomes can be tightly compacted into a structure that is visible under a microscope, or it can be more loosely distributed and resemble a pile of string.

The genetic information within each of these daughter cells is identical. Though the genetic code of a human being is contained within 46 chromosomes, only half of this number exists within the ...

But where and how does the famous double helix fit into chromosomes ... Within every cell (except red blood cells) is a nucleus -- a sphere-like structure separated from the rest of the cell ...

The five phases of mitosis and cell division tightly coordinate the movements of hundreds of proteins. How did early biologists unravel this complex dance of chromosomes? The most obvious ...

To prepare the 46 chromosomes of a human cell for transport to the daughter cells during cell division, each chromosome forms a compact X-shaped structure with two rod-like copies. How the cell ...

Every time a cell divides to produce two new daughter cells., the genome must be replicated and evenly divided between those ...

Cells use many complex genetic repair backup systems to fix DNA damage and remain healthy throughout their lives.