Autosomal recessive conditions are often thought to be 'metabolic' as opposed to autosomal dominant conditions being 'structural', notable exceptions:

• some 'metabolic' conditions such as Hunter's and G6PD are X-linked recessive whilst others such as hyperlipidemia type II and hypokalemic periodic paralysis are autosomal dominant
• some 'structural' conditions such as ataxia telangiectasia and Friedreich's ataxia are autosomal recessive

Mnemonics as ABCDEFGH

A - Albinism, Ataxia telengiectasia, Alkaptonuria

B - Beta Thalassemia

C - Cystic Fibrosis, Congenital Adrenal Hyperplasia

D - Distal spinal muscular atrophy 1, Dubin Johnson syndrome:

E - Emphysema(alpha -1 antitrypsin deficiency)

F - Friedreich ataxia, Familial Mediterranean fever

G - Galactosemia, Glycogen storage disorders

H - Hemochromatosis, Homocystinuria

Friedreich’s Ataxia

Phenylketonuria (PKU)