About DNA
DNA stands for Deoxyribonucleic acid, a molecule that contains the genetic instructions used in the development and function of all living organisms.
- DNA is often referred to as the "blueprint" or "genetic code" of life.
- DNA is a long molecule composed of nucleotides, which are the building blocks of DNA.
- DNA is found in the cells of all living organisms, from bacteria to humans.
DNA Structure
DNA is a double-stranded molecule, consisting of two complementary strands of nucleotides.
- The two strands of DNA are held together by hydrogen bonds between the nucleotides.
- The sugar-phosphate backbone of DNA is composed of alternating sugar and phosphate molecules.
- The nitrogenous bases in DNA are adenine (A), guanine (G), cytosine (C), and thymine (T).
DNA Function
DNA is responsible for storing and transmitting genetic information from one generation to the next.
- DNA contains the instructions for the development and function of all living organisms.
- DNA is used to make proteins, which perform a wide range of functions in the body.
- DNA is also used to pass on genetic traits from one generation to the next.