What are the chances of a person with this disease passing the disease on to their offspring?

There is a 50% chance of an affected individual passing the disease on to their offspring if they mate with a carrier of the disease.

 

(rr represents an affected individual Rr represents a carrier)

There is a 0% chance of an affected individual passing the disease on to their offspring if they mate with a non-affected individual.

 

(RR represents a non-affected individual)

There is a 100% chance of an affected individual passing the disease on to their offspring if they mate with another affected individual.

	r	r
r	rr	rr
r	rr	rr