Question

Environmental factors can influence the gene expression in some organisms. Using a specific example, explain how a lighter shade of a color can affect the gene expression in an organism where lighter shading affects the phenotypes of the organism. First answer will mark as the brainliest

Answer 1

An example is the drop of white-colored moths and an increase in dark-colored moths in London after  the industrial revolution. Because darker-colored moths could camouflage well in the sooty environment (due to industrial emissions), they were preyed less by their predators. White-colored moths stood out and due to being preyed more their numbers declined over generations – because they wouldn’t survive long enough to reproduce and pass their genes to the next generation. The predominant color for the moths’ population became dark color.