Pedigree

Dominant vs Recessive

r -skips generation
D -doesn't skip
-affected kids always have at least one parent

Autosomal vs Sex-linked

AA -even in sexes
Xr -more males
XD -more females
-all daughters of affected dad
Y -only males

Autosomal recessive

skips generations
both parents have: all kids have
sexes equal

cystic fibrosis
PKU
Sickle-cell anemia

Autosomal dominant

no parent: no kids
affected kid: at least one parent
sexes equal

achondroplasia (dwarfism)
Huntington disease
Marfan syndrome

X-linked recessive

skips generations
affected mom: all sons
affected dad: all daughter, no sons
more males

colour blindness
hemophilia
fragile X syndrome

X-linked dominant

affected dad: all daughter, no sons
more females

congenital generalized hypertrichosis
Rett syndrome
hypophosphatemia

Y-linked

only males

hypertrichosis of ears (hairy ears)
webbed toes
porcupine man