Sometimes, however, we can either have a trisomic individual or we can have a monosomic individual. And what that means is one of these pairs actually has an extra copy of a chromosome. So three in this particular case, or we can have one less. So we can have a monosomic condition. So that is what we mean by anuploid. Anuploid is a type of chromosomal abnormality in which we either have an estro copy of one of the chromosomes or we have one less than we should normally have.