What do you think each of the two environmental factors you listed above are doing to cause the gentically transformed bacteria to turn green?

Answer 1

The sugar arabinose turns on expression of the GFP gene by binding to a regulatory protein, araC, which sits on the Pbad promoter. When arabisone is present, it binds to araC, consequently changing the conformation of araC which facilitates transcription of the gene by RNA polymerase. When exposed to UV light, the electrons in GFP's chromophere are excited to a higher energy state. WHen they drop down to a lower energy state they emit a longer wavelength of visible flourescent green light.

Answer 2

Based on the limited information provided, it is difficult to determine the environmental factors mentioned or their specific impacts on the genetically transformed bacteria turning green. However, environmental factors such as exposure to certain chemicals or stressors, changes in temperature or pH levels, or the presence of specific nutrients can potentially affect gene expression or enzyme activity, leading to the green coloration. Further details about the environmental factors would be necessary to provide a more accurate explanation.