Identical Twins Ilyse and Lauren Both Have a Gene for Trait

question 98

Multiple Choice

Identical twins Ilyse and Lauren both have a gene for trait H. The gene for trait H is expressed only when a child eats rice before the age of 2 years. Ilyse and Lauren are separated at birth, and Ilyse lives in Japan, where babies begin eating rice at an early age. Lauren lives in Canada, and she is not given rice before the age of 2 years. Ilyse develops trait H, whereas Lauren does not develop the trait. This is an example of:

• A) polygenic inheritance.
• B) genotype-environment interaction.
• C) phenotypical variety.
• D) the dominant-recessive pattern of inheritance.

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Definitions:

Champion

An individual who passionately supports, promotes, or defends a particular cause, idea, or project, often inspiring others to do the same.

Convert

To change something into a different form or properties, typically to serve a different function or purpose.

Defector

An individual who renounces their allegiance to one group in favor of another; often used in political, military, or social contexts.

Doubter

An individual inclined to question or exhibit skepticism towards certain beliefs, ideas, or the certainty of outcomes.