DNA - Wikipedia
Deoxyribonucleic acid (/ diːˈɒksɪˌraɪboʊnjuːˌkliːɪk, - ˌkleɪ -/ ⓘ; [1] DNA) is a polymer composed of two polynucleotide chains that coil around each other to form a double helix. The polymer carries genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses.
DNA | Definition, Discovery, Function, Bases, Facts, & Structure ...
2024年12月14日 · Deoxyribonucleic acid (DNA) is an organic chemical that contains genetic information and instructions for protein synthesis. It is found in most of every organism. DNA is a key part of reproduction in which genetic heredity occurs through the passing down of DNA from parent or parents to offspring. What is DNA made of? DNA is made of .
Deoxyribonucleic Acid (DNA) Fact Sheet - National Human …
2020年8月24日 · 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. Where is DNA found? In organisms called eukaryotes, DNA is found inside a special area of the cell called the nucleus.
What is DNA? - MedlinePlus
2021年1月19日 · DNA is a double helix formed by base pairs attached to a sugar-phosphate backbone. DNA is the hereditary material in humans and almost all other organisms. Genes are made up of DNA.
DNA - Definition, Function, Structure and Discovery - Biology …
2019年4月8日 · Deoxyribonucleic acid, or DNA, is a biological macromolecule that carries hereditary information in many organisms. DNA is necessary for the production of proteins, the regulation, metabolism, and reproduction of the cell.
Deoxyribonucleic Acid (DNA) - National Human Genome …
3 天之前 · 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 …
What Is DNA?- Meaning, DNA Types, Structure and Functions
DNA is the hereditary material that contains the genetic code that makes up an organism. Explore more about DNA, its structure and functions at BYJU'S.
DNA Structure and Functions - Science Facts
2023年9月13日 · DNA stands for Deoxyribonucleic acid, a macromolecule that carries genetic information in all living organisms, from the tiniest microorganisms to the most complex multicellular humans. DNA is a fundamental molecule that holds life’s blueprint.
The Structure and Function of DNA - Molecular Biology of the …
In this section we examine the structure of the DNA molecule and explain in general terms how it is able to store hereditary information. A DNA molecule consists of two long polynucleotide chains composed of four types of nucleotide subunits. Each of …
DNA: Properties, Structure, Composition, Types, Functions
2023年8月3日 · Deoxyribonucleic acid (DNA) is the heredity material found in humans and all living organisms. It is a double-stranded molecule and has a unique twisted helical structure. DNA is made up of nucleotides, each nucleotide has three components: a backbone made up of a sugar (Deoxyribose) and phosphate group and a nitrogen-containing base attached ...