Web Search Results for "DNA"

What is DNA? - Genetics Home Reference - NIH
12 Sep 2020 at 10:42pm
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).

15 Sep 2020 at 9:41pm
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DNA | Discovery, Function, Facts, & Structure | Britannica
15 Sep 2020 at 6:03am
DNA, organic chemical of complex molecular structure found in all prokaryotic and eukaryotic cells. It codes genetic information for the transmission of inherited traits. The structure of DNA was described in 1953, leading to further understanding of DNA replication and hereditary control of cellular activities.

DNA - Wikipedia
16 Sep 2020 at 3:13pm
DNA is a long polymer made from repeating units called nucleotides, each of which is usually symbolized by a single letter: either A, T, C, or G. The structure of DNA is dynamic along its length, being capable of coiling into tight loops and other shapes. In all species it is composed of two helical chains, bound to each other by hydrogen bonds.Both chains are coiled around the same axis, and ...

AncestryDNA | DNA Tests for Ethnicity & Genealogy DNA Test
14 Sep 2020 at 9:54am
AncestryDNA is a cutting edge DNA testing service that utilizes some of the latest autosomal testing technology, our patented Genetic Communities? technology, and the largest consumer DNA database to revolutionize the way you discover your family history.

DNA - Simple English Wikipedia, the free encyclopedia
13 Sep 2020 at 8:39pm
DNA, short for deoxyribonucleic acid, is the molecule that contains the genetic code of organisms.This includes animals, plants, protists, archaea and bacteria.. DNA is in each cell in the organism and tells cells what proteins to make. Mostly, these proteins are enzymes.DNA is inherited by children from their parents. This is why children share traits with their parents, such as skin, hair ...

Dna | Definition of Dna at Dictionary.com
14 Sep 2020 at 6:05am
Dna definition, deoxyribonucleic acid: an extremely long macromolecule that is the main component of chromosomes and is the material that transfers genetic characteristics in all life forms, constructed of two nucleotide strands coiled around each other in a ladderlike arrangement with the sidepieces composed of alternating phosphate and deoxyribose units and the rungs composed of the purine ...

What Is DNA? Structure, Function, Pictures & Facts
15 Sep 2020 at 3:58pm
DNA stands for deoxyribonucleic acid. It?s made up of units of biological building blocks called nucleotides. DNA is a vitally important molecule for not only humans, but for most other ...

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