C-value refers to the amount of DNA present in a haploid nucleus of a cell. It is an important measurement in genetics and genomics, as it can vary greatly between species. Synonyms for c-value include DNA content, genome size, and nuclear DNA amount. In some cases, it may also be referred to as the "genetic information" of an organism. C-value can have significant implications for the complexity and evolution of a species, as organisms with greater c-values may have larger and more complex genomes. Studying c-values across different species can provide insight into the genetic diversity and relationships between them.