One of your roommates comes from a small rural town and the other is from a large city. does this factor affect their probability of experiencing a schizophrenic episode? a. no, genetic factors override environmental factors in schizophrenia. b. maybe, depending on how stressful each person's environment is. c. yes, the person from the urban area may be at higher risk for developing schizophrenia. d. yes, the person from the rural area may be at higher risk for developing schizophrenia.

The answer is letter c, it is because there is a possibility that the person coming from urban area can have a higher risk in regards with the risk for having schizophrenia because of other factors that are associated from the change that he or she may undergo to.

the father in the first generation probably had the recessive colorblind trait in his x chromosome. if he and his wife both had the colorblind trait, even if she had 1 recessive and 1 dominant, then that trait would be passed on to their kids.

(since you didn't attach the family tree this is just an assumption)

the index of refraction of the second medium is higher. i just took the test trust me !