What is DNA?
DNA, or deoxyribonucleic acid, is the molecule that carries the genetic information in all living organisms. It is located in the nucleus of each cell and organized into structures called chromosomes. DNA comprises four nucleotide bases - adenine, thymine, cytosine, and guanine. The particular sequence of these bases makes up an organism's genes, encoding the proteins and other molecules essential for life. This unique DNA sequence determines an individual organism's traits and characteristics.
anatomy of flowering plants
notes (ncert)

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