In Cell Theory, we say that cells are the building blocks of life. Then what is DNA? Building blocks should be indivisible.

Cells are said to be the building blocks of life because they are the smallest unit of life. The organelles and structures within a cell are part of the cell, but not able to sustain life their own. This is analogous to the atom, which is the smallest unit of matter. Atoms are also comprised of smaller parts called subatomic particles, which include the proton, neutron, and electron.

DNA, or deoxyribonucleic acid, is a biomolecule that...

Cells are said to be the building blocks of life because they are the smallest unit of life. The organelles and structures within a cell are part of the cell, but not able to sustain life their own. This is analogous to the atom, which is the smallest unit of matter. Atoms are also comprised of smaller parts called subatomic particles, which include the proton, neutron, and electron.

DNA, or deoxyribonucleic acid, is a biomolecule that is found within the cytoplasm of a prokaryotic cell and is housed within the nucleus of a eukaryotic cell. DNA is a double helix that is made of nucleotides. Nucleotides of DNA are made of a phosphate group, deoxyribose sugar, and one of four nitrogen bases. The possible nitrogen bases of DNA are adenine, thymine, guanine, and cytosine. The order of the nitrogen bases within DNA is what makes one gene different from the other. This genetic information is passed onto offspring during sexual reproduction.