Question

Pedigrees and karyotypes provide the means for individuals to identify their risks of genetic disorders. What can be evident on a karyotype but not seen on a pedigree? A. family carriers of a genetic disorder B. family history of a genetic disorder C. risk of a genetic disorder in offspring D. a visual image of a chromosomal defect.

Answer 1

The correct answer would be D. a visual image of a chromosomal defect.

Karyotype is defined as a visual display of the number and appearance of all the chromosome present in the cell.

It is used to detect any chromosomal abnormality such as a change in chromosome number, change in chromosome set, malformed chromosome et cetera.

In contrast, a pedigree chart is a diagrammatic representation of phenotype or appearance of a particular gene in a number of generations.

it shows the family history of the genetic disorder, risk of that disorder in an offspring, et cetera.

Answer 2

I think the correct answer from the choices listed above is option D. The thing that can be evident on a karyotype but not seed on a pedigree would be that  the presence of a visual image of a chromosomal defect. Hope this answers the question. Have a nice day.