Human Eye Color Is the Result Of

question 74

Multiple Choice

Human eye color is the result of:

• A)polygenic inheritance.
• B)codominance.
• C)simple dominance.
• D)sex-linked recessive inheritance.
• E)genes and environmental effects.

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Definitions:

Heredity

The passing on of physical or mental characteristics genetically from one generation to another.

Canalization

The tendency for a trait that is biologically programmed to be restricted to only a few outcomes.

Range of Reaction

A theory suggesting that genetic potential sets certain limits on the expression of traits, but the environment determines where within those limits an individual will fall.

Epigenesis

The process through which the genotype interacts with the environment to guide development, affecting gene expression without altering the DNA sequence.