DNA | Definition, Discovery, Function, Bases, Facts, & Structure
DNA, abbreviation of deoxyribonucleic acid, organic chemical of complex molecular structure that is found in all prokaryotic and eukaryotic cells and in many viruses. DNA codes genetic information for the transmission of inherited traits. A brief treatment of DNA follows. For full treatment, see genetics: DNA and the genetic code. Britannica Quiz
DNA - Wikipedia
DNA exists in many possible conformations that include A-DNA, B-DNA, and Z-DNA forms, although only B-DNA and Z-DNA have been directly observed in functional organisms. The conformation that DNA adopts depends on the hydration level, DNA sequence, the amount and direction of supercoiling, chemical modifications of the bases, the type and concentration of metal ions , and the presence of polyamines in solution.
Deoxyribonucleic Acid (DNA) Fact Sheet - Genome.gov
Deoxyribonucleic acid (DNA) is a molecule that contains the biological instructions that make each species unique. DNA, along with the instructions it contains, is passed from adult organisms to their offspring during reproduction.
What is DNA?: MedlinePlus Genetics
DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a person’s body has the same DNA. Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).
Deoxyribonucleic Acid (DNA) - Genome
Deoxyribonucleic acid (abbreviated DNA) is the molecule that carries genetic information for the development and functioning of an organism. DNA is made of two linked strands that wind around each other to resemble a twisted ladder — a shape known as a double helix. Each strand has a backbone made of alternating sugar (deoxyribose) and phosphate groups.
What Is DNA? Summary, Structure, and Importance - Healthline
DNA stands for deoxyribonucleic acid. It contains units of biological building blocks called nucleotides. DNA is a vitally important molecule for not only humans but also most other organisms....
DNA function & structure (with diagram) (article) | Khan Academy
DNA is the information molecule. It stores instructions for making other large molecules, called proteins. These instructions are stored inside each of your cells, distributed among 46 long structures called chromosomes. These chromosomes are made up of thousands of shorter segments of DNA, called genes.
What is DNA? | Live Science
DNA, which stands for deoxyribonucleic acid, is a molecule that supplies the genetic instructions that tell living creatures how to develop, live and reproduce. DNA can be found inside every...
DNA explained: Structure, function, and impact on health
DNA is a two-stranded molecule that appears twisted, giving it a unique shape referred to as the double helix. Each of the two strands is a long sequence of nucleotides. These are the individual...
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