In fragile-X syndrome, a. females are affected more severely than males. b. a short sequence of DNA.

In fragile-X syndrome, a. females are affected more severely than males. b. a short sequence of DNA is repeated many times to create the fragile site. c. both the X and Y chromosomes tend to break when prepared for microscopy. d. all people who carry the gene that causes the syndrome are mentally retarded. e. the basic pattern of inheritance is autosomal dominant.

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