[Campbell Biology P.340] Which of the following pairs of concepts are direct opposites, desc... | Practice Question

Which of the following pairs of concepts are direct opposites, describing a one-to-many versus a many-to-one relationship between genes and traits?

  • A: Codominance and Incomplete Dominance
  • B: Epistasis and Polygenic Inheritance
  • C: Pleiotropy and Polygenic Inheritance
  • D: Complete Dominance and Multiple Alleles

Explanation

Pleiotropy is when one gene affects multiple phenotypic characters one-to-many . Polygenic inheritance is when a single phenotypic character is affected by two or more genes many-to-one . The summary table clearly defines these as inverse scenarios.