Biology 1001A Study Guide - Midterm Guide: Raltegravir, Scantron Corporation, Topoisomerase
26 Jan 2020
School
Department
Course
Professor
Document Summary
Circle the best single letter choice for each of the following questions before transferring your answers to your scantron sheet. Note, for multiple-multiple style questions, more than one option may be correct (e. g. 1, 2 & 3 only). Part marks may be available for choosing some of the correct answers but choosing any incorrect answer earns a grade of 0 : a school of fish becomes trapped in a dark underwater cave. Many generations later, the descendants of these fish still live in the cave, but the eyes of the descendants are much smaller than those of their ancestors. Which of the following explanations most likely accounts for the scenario above: the cave contained a chemical pollutant that increased the mutation rate at a gene influencing eye size. Over time, individual fish accumulated mutations and everyone"s eyes became smaller: fish in the cave no longer needed to use their eyes, because the cave was so dark.
