pedigrees

Question 1

autosomal recessive

Answer 1

Autosomal Recessive: A pattern of inheritance in which an affected individual has two unaffected parents; the trait often skips generations.

Question 2

autosomal dominant

Answer 2

Autosomal Dominant: A pattern of inheritance in which an affected individual has at least one affected parent; the trait appears in every generation.

Question 3

X-Linked Dominant

Answer 3

X-Linked Dominant: A pattern of inheritance in which an affected male passes the trait to all his daughters but none of his sons; affected females pass the trait to half their children.

Question 4

x linked recessive

Answer 4

X-Linked Recessive: A pattern of inheritance in which affected males inherit the trait from their mothers, and affected females must inherit the trait from both parents; the trait often skips generations.