Question

this disorder of bone growth prevents cartilage from changing to bone. it is characterized by dwarfism, large head size, and normal intelligence. sickle cell anemia achondroplasia down syndrome fetal alcohol syndrome

Explanation:

Achondroplasia is a genetic disorder of bone growth where cartilage - to - bone conversion is impaired, leading to dwarfism, large head size, and normal intelligence. Sickle Cell Anemia affects red blood cells, Down syndrome is a chromosomal disorder with intellectual and physical characteristics different from the described ones, and Fetal Alcohol Syndrome is due to prenatal alcohol exposure with its own set of symptoms.

Answer:

Achondroplasia