1. The Effects of Vitamin A Status on Gut Microbiota Populations Open Access Author: White, Michael David Title: The Effects of Vitamin A Status on Gut Microbiota Populations Area of Honors: Biology Keywords: vitamin Amicrobiotagut florabacteriaDNA extractionDNA isolation File: Download Schreyer_Honors_Thesis.pdf Thesis Supervisors: Margherita Teresa-Anna Cantorna, Thesis SupervisorDr. Stephen Wade Schaeffer, Thesis Honors Advisor