Question

which of the following is a chart that follows the presence or absence of a trait in different family members over several generations (grandparents, siblings, children, etc.)?

a.) crispr

b.) pharmacogenomics

c.) gwas

d.) pedigree

Explanation:

• Crispr: It is a gene - editing technology, not a chart for tracking traits in families.
• Pharmacogenomics: Deals with how genes affect a person's response to drugs, not family trait tracking.
• GWAS (Genome - Wide Association Studies): Looks for genetic variants associated with traits or diseases in large populations, not specifically family - based trait tracking over generations.
• Pedigree: A pedigree chart is specifically used to follow the presence or absence of a trait in different family members across several generations (like grandparents, siblings, children etc.).

Answer:

d. Pedigree