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? family carriers of a genetic disorder family history of a genetic disorder risk of a genetic disorder in offspring a visual image of a chromosomal defect

The correct answer is the visual image of a chromosomal defect.

Explanation:

An ancestral line or a chart signifying the lineage or the descent of an individual is termed as pedigree. It is depicted in the form of a diagram that demonstrates a lineage or genealogy of an organism and all its ancestors. It helps in analyzing or following the inheritance of the trait.  

On the other hand, karyotype signifies the visual look and the number of chromosomes found in the nucleus within the cells of an organism or a species. Thus, karyotype can help in determining the visual demonstration of a chromosomal defect.  

because it travels in smaller waves then all other colors, causing it to be the most visible color