What is the complete set of genetic instructions for an organism known as?

The complete set of genetic instructions for an organism is referred to as the genome. The genome encompasses all of the hereditary information contained within the organism's DNA, including both the coding regions that are expressed as genes and the non-coding regions that play regulatory roles. Essentially, it serves as a comprehensive blueprint for the development, functioning, growth, and reproduction of that organism.

Chromosomes, while significant in organizing DNA, represent only one structural form of DNA packaging within a cell. There are multiple chromosomes in an organism, but together they make up the genome. The term "phenoform" is not universally recognized in the context of genetics. Genotype, on the other hand, refers specifically to the genetic constitution or alleles present in an individual, which can influence phenotypes but does not encompass the entirety of genetic material as the term genome does. Thus, the genome is the broadest term that captures the complete set of genetic instructions.