Question

multiple choice question
what is reaction range?

• limitation on variance of expression of certain inherited characteristics
• tendency of a person, especially after early childhood, to seek out environments compatible with his or her genotype
• statistical estimate of contribution of heredity to individual differences in a specific trait within a given population.
• potential variability, depending on environmental conditions, in the expression of a hereditary trait

Explanation:

Reaction range refers to the range of possible phenotypic expressions of a genetic trait, which is determined by how environmental conditions interact with the genotype. Let's analyze each option:

1. The first option describes a fixed limitation, not the variable range based on environment.
2. The second option refers to niche-picking, not reaction range.
3. The third option is the definition of heritability, not reaction range.
4. The fourth option matches the core idea of reaction range: the potential variability of a hereditary trait's expression based on environmental factors.

Answer:

potential variability, depending on environmental conditions, in the expression of a hereditary trait