Nullisomic
Encyclopedia
Nullisomic is a genetic
Genetics
Genetics , a discipline of biology, is the science of genes, heredity, and variation in living organisms....

 condition involving the lack of one of the normal chromosomal
Chromosome
A chromosome is an organized structure of DNA and protein found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences. Chromosomes also contain DNA-bound proteins, which serve to package the DNA and control its functions.Chromosomes...

 pairs for a species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...

(2n-2). Humans with this condition will not survive.
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