What trisonomony is?

Answer 1

Trisonomy is a term that generally refers to a genetic condition involving the presence of an extra chromosome in a set of three homologous chromosomes. This is distinct from the more commonly known term "trisomy," which typically describes conditions like Down syndrome, where there is an extra copy of chromosome 21. Trisonomy can lead to various developmental and health issues depending on which chromosome is affected. However, it is not a widely recognized term in genetics compared to trisomy.