As many as percent of cases of erectile disorder are caused by medical conditions such as cardiovascular disease, multiple sclerosis, kidney failure, and spinal cord injury. abnormal psychology

ι вєℓινє тнє αиѕωєя тσ уσυя qυєѕтισи ιѕ в. ℓуѕσѕσмє

ι нσρє тнαт ι ¢συℓ∂ нєℓρ уσυ.

multiple allele inheritance is traits controlled by more than 2 alleles (ex: pigeons having 3 alleles of one gene govern their feather color).   so the answer is a.

zxndjdjxjjxik no f cnnxn k is s dksoozkdkxjxjxjxj