Paul is open-minded about the subject of homosexuality. however, his friends at school openly ridicule and tease those students who are openly gay. to be accepted by his friends, paul usually joins in and treats gays in a similar fashion. in this example, paul is:

Paul is an unprejudiced discriminator

Explanation:

Prejudice refers to the biased feelings, thinking and beliefs, of an individual towards a particular group. Whereas, discrimination is described as the act of discriminating a group of people on the basis of race, religion, or color.    

Unprejudiced discriminator is an individual who does not have any biased feelings towards a group of individual but discriminates along with people that have prejudiced views.

Since Paul is not prejudiced but practice discrimination with prejudiced people. Therefore, Paul is an unprejudiced discriminator.

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.