DNA (deoxyribonucleic acid) is a long, complex molecule that carries the genetic instructions used in the development and function of all known living organisms. It is made up of four chemical bases: adenine (A), guanine (G), cytosine (C), and thymine (T). These bases are arranged in a specific order within the DNA molecule and form a code that determines the characteristics and traits of an organism.
DNA is found in the nucleus of cells, and it is organized into structures called chromosomes. Each chromosome contains many genes, which are segments of DNA that contain the instructions for making proteins. Proteins are essential for the structure, function, and regulation of the body's tissues and organs.
DNA is passed down from parents to their offspring and is responsible for the inherited characteristics of an organism. The structure of DNA was first described by James Watson and Francis Crick in the 1950s, and their discovery has had a major impact on the fields of biology and medicine.
DNA (deoxyribonucleic acid) is a molecule that encodes the genetic instructions used in the development and function of all known living organisms and many viruses. DNA is composed of two long chains of nucleotides, which are molecules made up of a sugar, a phosphate group, and a nitrogenous base. The four nitrogenous bases found in DNA are adenine, guanine, cytosine, and thymine, which are abbreviated as A, G, C, and T, respectively. The specific sequence of these bases determines the genetic information stored in DNA.
DNA is found in the nucleus of eukaryotic cells (cells that have a nucleus) and in the cytoplasm of prokaryotic cells (cells that don't have a nucleus). It is organized into structures called chromosomes, which are found in the nucleus of eukaryotic cells and contain the genetic material of an organism. DNA is passed from parent to offspring during reproduction, and it determines the traits and characteristics of an individual.
The structure of DNA was first described by James Watson and Francis Crick in 1953, and their work has had a significant impact on the field of genetics and has led to numerous scientific discoveries and advances in medicine and biotechnology.
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