The conventions used in the following figure need to be used to show the parents with the given genotypes.
The parental cross is:
We see the linkage of the dominant gene P to the microsatellite allele. The progeny would be:
1/4 - --affected by disease
1/4 - -affected by disease
1/4 - ---unaffected by disease
1/4- --unaffected by disease
The representation of parental cross with progeny is: