
DNA - Wikipedia
Cell division is essential for an organism to grow, but, when a cell divides, it must replicate the DNA in its genome so that the two daughter cells have the same genetic information as their parent.
DNA | Definition, Discovery, Function, Bases, Facts, & Structure ...
Nov 28, 2025 · Within a cell, DNA is organized into dense protein-DNA complexes called chromosomes. In eukaryotes, the chromosomes are located in the nucleus, although DNA also is found in …
What is DNA? Definition, Function & Structure - Cleveland Clinic
Jul 9, 2025 · DNA carries instructions that your cells can read and translate into proteins. These proteins help your body do everything it needs to function — from how your organs work to how you look.
What is DNA?: MedlinePlus Genetics
Jan 19, 2021 · 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 …
Deoxyribonucleic Acid (DNA) Fact Sheet
Aug 24, 2020 · In organisms called eukaryotes, DNA is found inside a special area of the cell called the nucleus. Because the cell is very small, and because organisms have many DNA molecules per cell, …
DNA: Function, structure, and impact on health - Medical News Today
Aug 26, 2025 · Virtually every cell in the body contains deoxyribonucleic acid (DNA). It is the genetic code that makes each person unique. DNA carries the instructions for the development, growth,...
3.4: DNA Structure and Function - Biology LibreTexts
3.4.4: Basics of DNA Replication The elucidation of the structure of the double helix provided a hint as to how DNA divides and makes copies of itself. This model suggests that the two strands of the double …
What is DNA? Understanding the Blueprint of Life
Apr 5, 2025 · DNA doesn’t just sit idle in a cell; it is actively used to direct the processes that build and sustain life. This happens through the formation of proteins, which are the molecular machines …
DNA AND RNA STRUCTURE – BIOLOGY BASICS
DNA contains the hereditary information, it is the genetic blueprint. DNA is a cell basic, all cells have DNA. DNA is a double helix; it looks like a spiral staircase. The sides of the staircase are composed …
DNA Structure and Function – Introductory Biology: Evolutionary and ...
DNA is a working molecule; it must be replicated when a cell is ready to divide, and it must be “read” to produce the molecules, such as proteins, to carry out the functions of the cell.