Fragile X syndrome is an X-linked recessive Achondroplasia is an autosomal dominant trait characterized by a shortened stature. An XX individual is a carrier for Fragile X disorder and is unaffected by achondroplasia. An XY individual is not affected by Fragile X disorder and has achondroplasia. a. What is the XX individual’s genotype b. What is the XY individual’s genotype? c. If the two individuals where to have children, what are the possible genotypes and phenotypes of their children? Use a Punnett square. d. What is the probability of them having a child with Fragile X and achondroplasia?

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