Look at the pedigree chart below, which shows inheritance of a certain disease.
A pedigree chart showing a male square half filled is connected to a female circle that is half filled in. Below them are four offspring, a male square that is completely filled in, one female circle that is not fiiled in, a female circle that is half filled in, and a male sqaure that is completely filled in
What percentage of offspring do not carry the gene or have the disease?
0%
25%
50%
100%