The Differences Between Marine and Freshwater Sticklebacks

question 53

Multiple Choice

The differences between marine and freshwater sticklebacks

• A) are mainly induced by environmental conditions.
• B) arise due to changes in the expression of a transcription factor.
• C) are an example of genetic differences that do not cause phenotypic differences.
• D) are the result of a mutation in a single population of freshwater sticklebacks.
• E) probably have no selective advantages.

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