Which of the following genetic disorders results in severe mental retardation caused by a deletion of part of a chromosome?
A) Huntington disease
B) Cri du chat syndrome
C) Prader-Willi syndrome
D) Cystic fibrosis
Answer: B
Which of the following genetic disorders results in severe mental retardation caused by a deletion of part of a chromosome?
A) Huntington disease
B) Cri du chat syndrome
C) Prader-Willi syndrome
D) Cystic fibrosis
Answer: B