Magazine article The Saturday Evening Post

Dna: Controller of Cell Activity

Magazine article The Saturday Evening Post

Dna: Controller of Cell Activity

Article excerpt

DNA (DeoxyriboNucleic Acid), the material from which the chromosomes of a cell's nucleus are formed, governs cell growth and inheritance. Shown on these pages is the process by which DNA instructs chemical compounds to form, or synthesize, the proteins that control specific cell functions. Protein synthesis starts when DNA temporarily unwinds at specific points.

DID YOU KNOW ...

Chromosomes are 40% DNA and 60% protein. Six billion base pairs of DNA are tightly packaged into 46 chromosomes.

Our genes carry the information necessary for making all of the thousands of proteins and enzymes in a cell. Proteins and enzymes carry out all of the important functions in a cell and determine what that cell will do and how it will respond to its environment. The Human Genome Project is a worldwide effort aimed at sequencing all of our genes. Once this project is complete we will have our genetic blueprint. From this we can start examining all of our genes, what they do and how each may be involved in human disease. …

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