Which characteristic of carbon makes it essential to living organisms

Carbon has a unique property via which it bonds in many ways with itself and with other elements to form chains. Therefore, all the organic compounds such as proteins, fats and carbohydrates, essential for the survival of living organisms are made up of carbon chains.

If you have a letter choice answer it will be C.

Explanation:

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

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