Analyze DNA sequences and calculate genetic properties
GC content is the percentage of nitrogenous bases in a DNA molecule that are either guanine (G) or cytosine (C). It's an important indicator of DNA stability, as GC bonds are stronger than AT bonds due to three hydrogen bonds versus two. High GC content (>60%) indicates more stable DNA, while low GC content (<40%) suggests less stability. This metric is used in genomics, molecular biology, and bioinformatics for various analyses including gene prediction and organism classification.