Biology 1001A Study Guide - Colchicine, Pyrimidine, Crocus
21 Jan 2013
School
Department
Course
Professor
Document Summary
This exercise allows 35 minutes for 14 questions. Most questions have a straightforward structure with a single correct answer for full marks. However, there are two types of questions in which more that one answer may be correct: Type 1 questions are structured as was shown in lecture 8 with 5 possible combinations of correct answers to choose from (a 1, 2, & 3; b 1 & 3; c 2 & 4 etc. Type 2 questions may have more than one correct answer and you must pick all correct answers to get full marks. Part marks are available but there is a penalty for choosing incorrect answers. (e. g. two correct + one incorrect = 0. 5 marks. ) When people infected with hiv take the anti-retroviral drug azt, the viral population evolves to become more and more azt-resistant. However, among hiv patients not taking this drug, azt-resistance does not increase.
