The role of environmental factors on gene expression is illustrated by
A)the varying plant height of genetically identical yarrow plants when grown at different elevations.
B)varying body forms of Daphnia affected by the presence of predators
C)the depression response that some persons make to very stressful situations.
D)the fur pattern of Himalayan rabbits.
E)all of these.

Question

Quizplus · Accepted Answer

All of these examples illustrate the role of environmental factors on gene expression. The varying plant height of genetically identical yarrow plants when grown at different elevations highlights the impact of environmental factors such as light and availability of nutrients on gene expression. The varying body forms of Daphnia affected by the presence of predators likewise shows how environmental factors can impact gene expression through natural selection. The depression response that some persons make to very stressful situations illustrates how gene expression can be influenced by environmental factors like traumatic events. Finally, the fur pattern of Himalayan rabbits is affected by temperature-induced changes in gene expression, which is again an example of the influence of environmental factors on gene expression.

The Role of Environmental Factors on Gene Expression Is Illustrated