In the context it was obvious that allieslut had never heard of DNA before. To be that ignorant of general knowledge must require a truly breathtaking level of stupidity - borderline retarded, in fact.
A couple of weeks ago she admitted that she was genuinely unaware that over the past 200 years people had become more prosperous. To reach adult years ignorant of the most basic facts about the world in which we all live beggars belief.
College educated? Not a chance. She must have sleepwalked through whatever third rate schools she attended until she reached school leaving age.