Asked by Chloe Cheung on Apr 28, 2024
Verified
Huntington disease is an autosomal dominant disorder that leads to progressive degeneration of brain cells. There is no effective treatment for the disorder and individuals usually die in their 40s or 50s, 10 to 15 years after the onset of symptoms. Which of these statements about Huntington disease is true?
A) As an autosomal dominant disease, Huntington disease is expressed only if both parents carry the trait.
B) Huntington disease usually skips a generation.
C) Researchers have located the gene for Huntington disease on chromosome 9.
D) Huntington disease usually appears during the teenage years.
E) Huntington disease is caused by a mutated copy of the gene for a protein called huntingtin.
Huntington Disease
A genetic disorder causing the breakdown of nerve cells in the brain, leading to physical and mental deterioration.
Autosomal Dominant Disorder
An autosomal dominant disorder is a type of genetic disorder where a single copy of the mutated gene, inherited from one parent, is sufficient to cause disease, affecting both sexes equally and often present in every generation.
Huntingtin
A protein associated with Huntington's disease, caused by genetic mutations leading to neurodegeneration.
- Comprehend the principles of dominant and recessive alleles, along with their effects on phenotypes.
- Understand the concept of genetic determination and its influence on inherited traits such as diseases.
Verified Answer
Learning Objectives
- Comprehend the principles of dominant and recessive alleles, along with their effects on phenotypes.
- Understand the concept of genetic determination and its influence on inherited traits such as diseases.
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