7.4 Pedigree

Question 1

Pedigree Analysis helps _____

Answer 1

to follow trait inheritance through families

Question 2

Circles represent _____

Squares represent _____

Answer 2

Females

Males

Question 3

Autosomal Recessive is likely if:

Answer 3

both parents do not show the trait but one or more of their offspring does

Question 4

Autosomal Dominant is likely if:

Answer 4

both parents show the trait but some of their offspring do not show the trait

Question 5

X-linked recessive signs:

Answer 5

• Males are more affected

- Mother’s must have affected sons

Question 6

X-linked dominant signs:

Answer 6

• Females are more affected

- Every daughter of an affected male will be affected

Question 7

Y-linked inheritance signs:

Answer 7

• Only males are affected

- All male offspring are affected