Guide to DNA

DNA or Deoxyribonucleic Acid is the most important molecule in life. All plants and animals, (and humans) have it. It structures the type of life that can come about when its copy operations take place. Plants cannot generate animals and animals cannot generate humans. All life forms are restricted to generate only life forms that are within its DNA structure. It is even more restrictive than that, because from a DNA perspective, a dog cannot have cat offspring or mouse offspring. DNA controls the parameters of biological life, so understanding how it operates is one of the most important scientific ventures. Still perplexed? Read our collection of insightful articles on how DNA works and how it influences life patterns.

Dna Structure

Image: in the Public Domain, U.S.National Library of Medicine

Latest Articles on DNA
Put Your RNA Knowledge to the Test

DNA may grab most of the attention, but another nucleic acid is also available - RNA. Find out how much you know about this major macromolecule in our fun and insightful RNA quiz....

DNA: Structure, Function, and Regulation

Venture deep inside the nucleus to explore the structure and function of DNA. The molecule's structure is key to its function and replication, and it controls its own replication...

Towering Figures in the History of Genetics

Crick and Watson may well be the names that trip off the tongue when most people are asked to identify pioneering geneticists. But behind these two scientific giants is a crowd of equally...

The Use of DNA Profiling in the Justice System

Shows about forensic crime-fighting with DNA are a big hit on TV, but they usually skimp on the details. If you’ve ever wondered just how DNA profiling works, and how it’s...

Most Popular Articles on DNA
    Earlobes and Human Genetics

    Do your ear lobes appear to be free hanging or are they fastened securely to the side of your head? Whether or not people have attached earlobes is used to demonstrate Mendelian inheritance, but the...

    Ribonucleic Acid: Where is it Found in the Human Body?

    RNA is primarily a linear nucleic acid polymer. Unlike DNA, it is not a double helix. The most common locations are in the cell nucleus, mitochondria and ribosomes....

    The Structure and Function of Ribosomes

    The DNA molecule contains information about which protein should be made. Learn about the structure and function of a ribosome: the biological superstructures that translate genetic information into...

    Tongue Rolling Genetics

    Tongue rolling genetics is often taught in the classroom as a simple demonstration of Mendelian inheritance. However, the picture is not as clear-cut as some of the text books would have us believe. The...

    The Differences Between Lytic and Lysogenic Cycle

    Find out about the spread of viruses with this brief look at the lytic and lysogenic cycles. These occur after a virus infects a cell....

More About DNA
Facts about Human Genetics

The field of human genetics is vast, and encompasses many disciplines such as, population genetics, and developmental genetics. It's basically summed up as any aspect of research...

Agarose Gel Electrophoresis: How it Works

Agarose gel electrophoresis, a process used to isolate nucleic acids, uses an electric field to separate molecules based on size....

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Meet the Guide Editor
Message from the Editor:
Why do humans produce humans and not other living organisms? Why do apple trees produce apple trees? We have an idea of what the answer is, but from a molecular point of view the answer is not so simple or obvious. Understanding Molecular DNA is the way to understand why these structures occur.
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