pedigree analysis

Question 1

are often used to determine the mode of inheritance (dominant, recessive, etc.) of genetic diseases.

Answer 1

PEDIGREE

Question 2

A very important tool for studying human inherited diseases

Answer 2

PEDIGREE ANALYSIS

Question 3

—– means inherited on chromosome 1-22

Answer 3

Autosomal

Question 4

——- means inherited on either X or Y chromosome.

Answer 4

sex-linked

Question 5

→ Trait is rare in the pedigree
→ Trait often skips generations
(hidden in heterozygous carriers)

Answer 5

Autosomal recessive

Question 6

→ Males are more often affected
than females
→ Trait is rare in pedigree.
→ Females are carriers

Answer 6

● X-linked recessive pedigrees

Question 7

→ Trait is common in pedigree
→ passed to ALL of their daughters
→ Males and females are equally
likely to be affected

Answer 7

● X-linked dominant pedigrees

Question 8

→ Traits on the Y chromosome are
only found in males, never in
females.
→ The father’s traits are passed to XY
on all sons.

Answer 8

Y-Linked Inheritance