When the bile can not be properly propelled from the not-mechanically-obstructed gallbladder or can not flow out of the end of the common bile duct properly, there is a state of biliary dyskinesia. So, biliary dyskinesia is a dynamically (functional...not fixed mechanical) obstructive, pain-producing disorder.
Two sections each with 20 questions, 35 minutes for each section. Each quantitative reasoning section (also common called the Math GRE sections) contains a mix of multiple choice, quantitative analysis, and user input questions.
Although, the basic sections in GRE and GMAT are the same: Quantitative, Verbal and Analytical Writing, the sub categories and the basic structure differ in the two exams. Quantitative Comparison in the first section in GRE can be equated to Data Sufficiency of the same section in GMAT. The first section is for 45 minutes in GRE and 75 minutes in GMAT.