Dear student,
DNA stands for Deoxyribonucleic acid. DNA is the hereditary unit of the cell and its functional components are called genes, A gene can be defined as the piece of DNA which code for a protein or RNA. They are located on the DNA or chromosomes. Genes is made up of DNA. The basic function of the gene is to code various proteins and RNA required by the cells and to pass on the information from one generation to the other. While, chromosomes are thread like structures found in the nucleus of a cell which contain strands of DNA packed together.
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