Primary ciliary dyskinesia is a disorder characterized by chronic respiratory tract infections, abnormally positioned internal organs, and the inability to have children (infertility). The signs and symptoms of this condition are caused by abnormal cilia and flagella.
Apart from the writing sections, all the five sections contain a total of 48 questions. Out of these 48 questions, 40 contribute towards the score in PCAT, while the remaining 8 questions are experimental questions that are not scored. Out of the two writing sections, one section is for experimentation.
Introduction to the PSAT. What is the PSAT? There are three versions of the PSAT, with two versions designed uniquely for high school students and the third, the PSAT 8/9, a crossover test designed for both eighth and ninth-graders.