Question

3 multiple choice 1 point a trait is influenced by both multiple genes and environmental conditions. this is an example of: codominance polygenic inheritance with environmental influence simple dominance a mutation

Explanation:

• Codominance: Occurs when both alleles in a heterozygote are fully expressed (e.g., AB blood type). Not related to multiple - gene and environmental influence.
• Polygenic inheritance with environmental influence: Traits like human height are influenced by multiple genes (polygenic) and also by environmental factors (e.g., nutrition). This matches the description in the question.
• Simple dominance: A single - gene trait where one allele masks the effect of another (e.g., Mendel's pea plant experiments for traits like flower color). Does not involve multiple genes and environment.
• A mutation: A change in the DNA sequence. While mutations can affect traits, the question is about a trait influenced by multiple genes and environment, not a mutation event.

Answer:

B. Polygenic inheritance with environmental influence