2006 Exam

2006 Exam - CC106 Midterm Exam II April 18, 2006 (based...

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Unformatted text preview: CC106 Midterm Exam II April 18, 2006 (based on:lectures 11-19 and corresponding discussions; labs 2-4; forum 1) VERY IMPORTANT : On your answer sheet, you must indicate which version of the exam you are using (Version 00, 01, or 02; follow the example onscreen). For each question, select the single best answer . Answer all questions on the scantron answer sheet. You will be given no credit for correct answers provided on the exam itself. Fill in the appropriate circle completely. Fill in your name and BU id # on the answer sheet and the exam. Indicate your discussion leader on this page and on the top of the answer sheet. (Finnerty: section = A0 ; Gutlerner = A1 ; Hudon = A2 ; Mazza = A3 ; Phillips = A4 ; Warkentin = A5 ; follow the example onscreen). You must turn in both the exam and the answer sheet as you exit the lecture hall (in the back of the room). Version 00 KEY Name : BU ID # : Hudon (A2) Phillips (A4) Warkentin (A5) Mazza (A3) DISCUSSION LEADER Finnerty (A0) Gutlerner (A1) x 1. Which of the numbered cells depicted above is exhibiting totipotency ? [ Lecture 11] a. III b. II c. I d. IV e. V Version 00 The diagram below depicts the development of a multicellular organism (a single individual). gametes nerve cells bone cells fat cells pancreas cells red blood cells white blood cells muscle cells skin cells I. II. III. IV. V. 2. Which of the numbered cells depicted above will undergo meiosis ? [ Lecture 11] a. III, IV, and V b. I, III, IV, and V. c. I, II, III, IV, and V. d. II. e. III. 3. Of the following cells or cell types, which has undergone patterning but not differentiation? [ Lecture 11] a. IV. b. nerve cells c. I. d. white blood cells. e. muscle cells 4. Development involves all of the following except: [ Lecture 11] a. an increase in spatial heterogeneity. b. an increase in organismal size driven primarily by an increase in cell number c. a progressive loss of potency by somatic cells d. patterning and cellular differentiation e. an increase in organismal size driven primarily by an increase in cell size. 5. Different cells adopt different cell fates because: [ Lecture 11] a. They lose different genes during development. b. They come to express different genes over the course of development. c. They gain different genes during development. d. Some cells inherit their mitochondia from their mother (through the egg), while other cells inherit their mitochondria from their father (though the sperm). 6. From a biological perspective, what is the fundamental denition of sex? [ Lecture 12] a. the act of copulation b. the means of reproducing other individuals c. the most basic instinct of all life forms d. symbiosis of germ line and soma e. genetic recombination through meiosis and fertilization Version 00 7. Why does the prevalence and persistence of sex need an explanation? [ Lecture 12] a. A sexual population of 1 million would be completely replaced by asexuals, starting from 1 mutant, in less than 50 generations b. A gene that caused asexual instead of sexual reproduction would be transmitted to twice as...
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2006 Exam - CC106 Midterm Exam II April 18, 2006 (based...

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