The Roloff Family has achondroplasia. Mr. and Mrs. Roloff have it and so does one of their sons. There other three children do not have it. What must be the genotypes of Mr. and Mrs. Roloff? (Hint: Is this an autosomal dominant or recessive disorder?)

True or False: Males are more likely to get sex-linked disorders than females.

True or False: Males can be carriers for sex-linked traits.

With sex-linked traits, we use ___ as the base letters when creating a Punnett Square.

A man with colorblindness marries a woman who is a carrier for colorblindness. What is the percent chance they have a male who is colorblind? (Hint: Make the Punnett Square!)

Dark purple flowers (P) and White flowers (W) mate to create offspring that are lavender (light purple, PW). Which type of inheritance is this?

A black dog (dBdB) and a white dog (dWdW) mate to create an offspring that is black with white spots (dBdW). Which type of inheritance is this?

Two lavender flowers (PW) mate with each other. What is the percent chance their offspring are Dark Purple (PP)?

A black dog (dBdB) and a black dog with white spots (dBdW) mate. What is the percent chance they have an offspring who is a white dog (dWdW)?