DNA is a double-stranded molecule held together by weak hydrogen bonds between base pairs of nucleotides.

DNA (deoxyribonucleic acid) is the chemical name for the molecule that conveys genetic instructions in all living things.

cell is defined as the smallest, basic unit of life that is responsible for all of life’s processes

Living things are made up of cells, which are the fundamental building blocks of life. The human body is made up of billions of cells, each with a unique purpose.

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