AP Biology · Unit 5: Heredity
5.5 Environmental Effects on Phenotype
In short
You must understand that environmental conditions can influence gene expression, leading to phenotypic plasticity (the ability of individual genotypes to produce different phenotypes).
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What else do you need to know about Environmental Effects on Phenotype?
The course expects you to be familiar with this concept through various illustrative examples, such as height and weight in humans, flower color based on soil pH, seasonal fur color in arctic animals, sex determination in reptiles, the effect of increased UV on melanin production in animals, and the presence of the opposite mating type on pheromone production in yeast and other fungi.
How is Environmental Effects on Phenotype tested on the exam?
This topic is assessed under Science Practice 1.C (Concept Explanation), requiring you to explain biological concepts and processes in applied contexts. Questions will likely present a scenario involving phenotypic plasticity (such as one of the illustrative examples) and ask you to explain how the specific environmental conditions influence gene expression to produce the observed multiple phenotypes from a single genotype.
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Environmental Effects on Phenotype: common questions
What do you need to know about Environmental Effects on Phenotype for AP Biology?
You must understand that environmental conditions can influence gene expression, leading to phenotypic plasticity (the ability of individual genotypes to produce different phenotypes).
How is Environmental Effects on Phenotype tested on the AP Biology exam?
This topic is assessed under Science Practice 1.C (Concept Explanation), requiring you to explain biological concepts and processes in applied contexts. Questions will likely present a scenario involving phenotypic plasticity (such as one of the illustrative examples) and ask you to explain how the specific environmental conditions influence gene expression to produce the observed multiple phenotypes from a single genotype.
Where does Environmental Effects on Phenotype fit in AP Biology?
Environmental Effects on Phenotype is topic 5.5 in Unit 5: Heredity of AP Biology.
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