11.2 Pedigree Charts and Inheritance Patterns

Question 1

What do you do to find out if the trait is recessive?

Answer 1

You look for someone that has a phenotype that is different from both their parents.

Question 2

Name the 4 classifications of traits:

Answer 2

• X-linked dominant
• X-linked recessive
• Autosomal dominant
• Autosomal recessive

Question 3

What do you do to find out if a trait is X-linked?

Answer 3

You look at all the females that are shaded in and if their fathers are also shaded in than it is X-linked. (if not then it is autosomal)