so histones bind with DNA very tightly. The basic repeating structural (and functional) unit of chromatin is the nucleosome, which contains eight histone proteins and about 146 base pairs of DNA ...

Rebecca Roberts is a science writer and communicator. She earned her PhD in molecular biology from the University of the Sunshine Coast in Australia and completed a two-year postdoctoral fellowship at ...

A gene is a fundamental unit of heredity, consisting of a specific sequence of DNA that encodes the instructions for making a particular protein or set of proteins. Genes are passed down from parents ...

So how does protein synthesis make hair? If you've looked at the activity (or even the text version of the activity), you know how a section of DNA instructs a cell how to make a protein.

DNA can be cut up and separated, which can form a 'bar code' that is different from one person to the next. The basic units (monomers) of DNA are nucleotides. These nucleotides consist of a ...

Histones are a family of basic proteins that associate with DNA in the nucleus and help condense it into chromatin. Nuclear DNA does not appear in free linear strands; it is highly condensed and ...