Why is nucleic acids important to the body?

The function of nucleic acids is highly important in many aspects of the human body. For example, the DNA (Deoxy-Ribonucleic Acid) of living things is composed of nucleotides, sugars, and phosphates, which are bonded together in a helix, forming a nucleic acid chain, which is further complementary base-paired with another nucleic acid, forming a double helical structure of the DNA. Through this structure of nucleic acids, the DNA in our body allows us to express or not express traits that are inherited from the parents. These traits are very important in expressing the uniqueness of each person, and can even determine our ability to survive in the changing environments. DNA studies can also be used in forensic science to aid in crime scene investigations!