DNA | Definition, Discovery, Function, Bases, Facts, & Structure ...
6 天之前 · 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 .
DNA - Wikipedia
DNA is a long polymer made from repeating units called nucleotides. [6] [7] The structure of DNA is dynamic along its length, being capable of coiling into tight loops and other shapes. [8] In all species it is composed of two helical chains, bound to each other by hydrogen bonds.
DNA - Definition, Function, Structure and Discovery | Biology Dictionary
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.
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.
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 Definition & Meaning - Merriam-Webster
The meaning of DNA is any of various nucleic acids that are usually the molecular basis of heredity, are constructed of a double helix held together by hydrogen bonds between purine and pyrimidine bases which project inward from two chains containing alternate links of deoxyribose and phosphate, and that in eukaryotes are localized chiefly in ...
What Is DNA? Summary, Structure, and Importance - Healthline
2022年2月11日 · 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...
Deoxyribonucleic Acid (DNA) - National Human Genome Research …
2024年11月20日 · 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 …
DNA – Definition, Discovery, Structure, Functions, & Labeled …
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.
Introduction: What is DNA? | Learn Science at Scitable - Nature
Deoxyribonucleic acid, more commonly known as DNA, is a complex molecule that contains all of the information necessary to build and maintain an organism. All living things have DNA within...