2.4.4 - Pedigree Diagrams

Question 1

What Can Pedigree Diagrams Be Used For?
(2 Points)

Answer 1

~ They trace the pattern of inheritance of a specific trait, through generations of family.

~ Provide information.

Question 2

What Do Pedigree Diagrams Provide Information On?
(4 Points)

Answer 2

~ Whether a trait is caused by a recessive or dominant allele.

~ Whether a trait is more likely to be inherited by males or females.

~ The genotypes of individuals in the family.

~ The probability that an individual in the family will inherit a trait.

Question 3

Interpret This Pedigree Diagram
(4 Points)

Answer 3

~ Both males and females are affected.

~ Every generation has affected individuals.

~ Eldest son in the second generation is affected.

~ There is one family group that has no affected parents or children.