Changes

'''DNA''', otherwise known as deoxyribonucleic acid, is a [[molecule]]. It's shape is known as a double helix (a shape like two ladders twisted around each other) It carries the [[genetic]] instructions for the proteins that form the bodies of living organisms. All living creatures contain DNA, and the DNA of two (sexually reproducing) creatures' offspring is a mix of its parents' DNA.

'''DNA''', otherwise known as deoxyribonucleic acid, is a [[molecule]]. It's shape is known as a double helix (a shape like a ladder that is twisted around over and over again) It carries the [[genetic]] instructions for the proteins that form the bodies of living organisms. All living creatures contain DNA, and the DNA of two (sexually reproducing) creatures' offspring is a mix of its parents' DNA.

Small parts of DNA called genes serve as the instructions for the body to carry out its functions and give rise to traits such as eye color, hair color, etc. Genes are packaged into [[chromosomes]]. Each individual human being has 23 pairs of chromosomes, where one set is inherited from his/her mother and the other set is inherited from his/her father.  

Small parts of DNA called genes serve as the instructions for the body to carry out its functions and give rise to traits such as eye color, hair color, etc. Genes are packaged into [[chromosomes]]. Each individual human being has 23 pairs of chromosomes, where one set is inherited from his/her mother and the other set is inherited from his/her father.