On a Pedigree Chart, What Symbol Would Represent a Son

Question

On a pedigree chart, what symbol would represent a son who is affected by a genetic disorder?
A) a shaded circle
B) a clear circle
C) a shaded square
D) a clear square

Accepted Answer

In a pedigree chart, a shaded square represents a male who is affected by a genetic disorder. A shaded circle represents a female who is affected, while clear squares and circles represent unaffected males and females, respectively.