When the Expression of a Trait Is Influenced by the Action

question 28

Multiple Choice

When the expression of a trait is influenced by the action of many genes, the pattern of inheritance is called

• A) complete dominance.
• B) discontinuous variation.
• C) incomplete dominance.
• D) multiple alleles.
• E) polygenic inheritance.

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Definitions:

Lowest Terms

The simplest form of a fraction when the numerator and denominator are reduced to their smallest possible numbers.

Ratio

An expression that compares two quantities in a specified order.

Fuel Mix

The combination of various fuel sources used to generate energy or power.

Two-Cycle Engine

An internal combustion engine that completes a power cycle with two strokes of the piston during only one crankshaft revolution.