Pedigrees and karyotypes provide the means for individuals to identify their risks of genetic disorders. what can be observed on a karyotype but not on a pedigree?

a visual image of a chromosomal defect

Explanation:

Karyotype is the name given to the set of chromosomes of a given species and has a characteristic shape, size and number. The morphology of these chromosomes is constant for the species, however the number can vary in cases of chromosomal changes. Through the karyotype we can see the existence of a defective chromosome that can cause a genetic disease.

A pedigree, in turn, is a document that proves the genealogy of an individual, showing all the crosses of his ancestors that led to the individual's conception. It is not possible to observe defective chromosomes in this document.