In humans hypercholesterolemia is a condition involving incomplete dominance , it causes elevated cholesterol levelsregardless of diet . sufferers of this disease are susceptible toheart attack at an early age because cholesterol build-up causeblockages of heart arteries . normal individuals are homozygous forone form of the gene with individuals homozygous for a second formof the gene may have five times the normal cholesterol levels intheir blood . heterozygous individuals may have double the normallevels of blood cholesterol. if a couple ,both of whom areheterozygous for hypercholsterolemia gene are expecting ababy,

What is the probability that the child will suffer the mostsevere form of this disease?