Looking at pedigree and tracking how various traits are passed from one generation to the next.

Looking at pedigree and tracking how various traits are passed from one generation to the next.

• A. Population genetics
• B. Classical or Mendelian genetics
• C. Phylogenetics
• D. Ecology

Answer: (B)

Tracking how traits are passed from generation to generation using a family pedigree is a hallmark of classical or Mendelian genetics. This approach is built on how alleles segregate and assort during reproduction, producing observable patterns in families—such as autosomal dominant, autosomal recessive, or X‑linked traits. By looking at who is affected, who carries a trait without showing it, and how it appears in offspring across generations, you can infer the mode of inheritance and estimate recurrence risks for future children. This focus on single-gene transmission and predictable inheritance patterns is what defines Mendelian genetics, setting it apart from population genetics (which analyzes allele frequencies in whole populations and evolutionary forces), phylogenetics (which explores evolutionary relationships among species), and ecology (which studies interactions between organisms and their environments).

Tracking how traits are passed from generation to generation using a family pedigree is a hallmark of classical or Mendelian genetics. This approach is built on how alleles segregate and assort during reproduction, producing observable patterns in families—such as autosomal dominant, autosomal recessive, or X‑linked traits. By looking at who is affected, who carries a trait without showing it, and how it appears in offspring across generations, you can infer the mode of inheritance and estimate recurrence risks for future children. This focus on single-gene transmission and predictable inheritance patterns is what defines Mendelian genetics, setting it apart from population genetics (which analyzes allele frequencies in whole populations and evolutionary forces), phylogenetics (which explores evolutionary relationships among species), and ecology (which studies interactions between organisms and their environments).