What causes Huntington disease?

Identifying individuals who carry a mutation for an autosomal recessive genetic disorder is important even if they are asymptomatic. If both parents are carriers, what is their chance of having a child that has a mutated phenotype?

Genome-wide association studies (GWAS) aim to determine a DNA marker to a quantitative trait loci (QTL) that influences a particular disease. It is different from QTL because it can scan the whole genome.
Which of the following diseases can be effectively investigated by GWAS?

What is the purpose of a repair template in CRISPR-Cas9 genome editing for large deletions?

Phenylketonuria (PKU) is an autosomal recessive disorder caused by mutations in the PAH gene, which encodes phenylalanine hydroxylase. This enzyme is responsible for the conversion of the amino acid phenylalanine to:

What would suggest the presence of the gene of interest on the genomic clone in Southern blot analysis?

Which of the following options correctly describes the main goals of the Human Genome Project?