Final answer:
Multicystic dysplastic kidney disease is a unilateral condition that affects the development of one kidney with multiple cysts.
Step-by-step explanation:
Multicystic dysplastic kidney disease is a congenital disorder that affects the development of the kidneys. It is characterized by the presence of multiple cysts in the affected kidney. Typically, multicystic dysplastic kidney disease is unilateral, meaning it affects only one kidney. The other kidney is usually normal and unaffected.