I think it's option four because as far as I know, red/green color blindness is an example of a recessive, sex-linked trait (encoded on the X chromosome), which results in much more men to suffer from it than women.
Hope that helps!
C. decomposer
C. from other organisms
Answer: facilitate the transport of substances across a cell membrane.
Explanation:
Tumor suppressor genes and proto-oncogenes cause cancer cells to divide uncontrollably.
The answer is B) proto-oncogenes.
