30. Use Figure 2 to answer the question. The model shown in Figure 2 can bost be used to explain the answer to which
question?

A. Why did some individuals develop the mutation that disrupts a working
enhancer?
B. When a working enhancer binds to a gene, does it affect the amount of
protein that can be produced?
C. What happens when an activator protein binds to the working enhancer in a
strand of DNA?
D. When a coding region of a gene becomes inactive, is the deactivation of the
enhancer proteins the only cause?

Why are small quantities of chlorofluorocarbons so harmful to the ozone layer? a. the chlorofluorocarbons act like ultraviolet radiation causing large amount of ozone to be produced. b. the chlorine from the chlorofluorocarbons reacts with free molecules of oxygen causing a stop in ozone production c. free oxygen atoms can replace the chlorine in chlorine monoxide, releasing a free atom of chlorine which can then recombine with an oxygen atom in ozone, destroying more ozone. d. chlorofluorocarbons absorb ultraviolet radiation, preventing the formation of ozone select the best answer from the choices provided

Photosynthesis converts light energy to chemical energy. which molecules are the end product of this transformation of energy in this reaction?

Which statement best describes the role of religion and culture in ancient medicine?