GC-content is a term used to describe the ratio of guanine and cytosine nucleotides in a DNA molecule. This ratio is often used to determine the stability of DNA and its susceptibility to mutations. There are several synonyms for GC-content, including G+C content, GC-ratio, and GC-pair frequency. These terms are used interchangeably in the scientific community and refer to the same concept of the guanine-cytosine ratio in DNA. GC-content is an important characteristic of DNA that helps scientists understand the structure and function of genes and genomes. Understanding the synonyms for GC-content is crucial for effective communication in the field of molecular biology and genetics.