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