Nucleic acids are complex molecules that play critical roles in genetic information storage, transfer, and expression. They are composed of nucleotides, which are the building blocks of DNA and RNA. Proper knowledge and understanding of nucleic acids are essential for fields such as genetics, molecular biology, biotechnology, and medicine. The study of nucleic acids involves a range of techniques, including DNA cloning, PCR, gene sequencing, and genetic engineering. Therefore, it is considered a specialized skill in the scientific community.