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The basic unit of DNA is a nucleotide. Each nucleotide consists of three portions: a phosphate group, a five-carbon sugar and a nitrogenous base. DNA uses four nitrogenous bases: adenine, thymine, guanine and cytosine. More »

www.reference.com Science Biology Molecular Biology & DNA

The name of the twisted ladder shape of the DNA molecule is called a double helix. This is because it is constructed of two long strands that twist around each other to form a ladder-like structure. More »

www.reference.com Science Biology Molecular Biology & DNA

A nucleotide is the monomer unit of DNA. Nucleotides are composed of a sugar, a phosphate and a nitrogenous base. DNA is a polymer consisting of many of these monomers linked together. More »

www.reference.com Science Biology Molecular Biology & DNA
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The primary purpose of DNA is to store hereditary information within the cells of all living things. It is a molecule that encodes the genetic instructions used in the development and functioning of all known living orga... More »

www.reference.com Science Biology Molecular Biology & DNA

Athletic DNA is an elite membership club for tennis professionals, trainers, coaches and upcoming juniors. It sells high-performance tennis apparel that includes tops, bottoms, hoodies, warm-ups, T-shirts and accessories... More »

www.reference.com Science Biology Molecular Biology & DNA

The University of Illinois at Chicago explains that DNA must replicate itself so that during cell division, both daughter cells receive the same genetic information. DNA replication is necessary during the process by whi... More »

www.reference.com Science Biology Molecular Biology & DNA

Mitochondrial DNA is DNA that is present inside the mitochondria of a cell. Mitochondrial DNA is not part of the DNA found in cellular chromosomes. More »

www.reference.com Science Biology Molecular Biology & DNA