Chp. 1 - Bio 190
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Questions and Answers

What is the term for the transfer of genetic information that occurs from parents to offspring?

  • Microbial geneaster
  • Vertical descent (correct)
  • Gene mutation
  • Horizontal gene transfer

    • Horizontal gene transfer involves the transfer of genetic material between organisms without parent-offspring relationships.

    True

    What is the role of mutation in genetic inheritance?

    Mutation introduces variations in genetic information.

    When one organism inherits genetic material from another organism, this is known as ________ gene transfer.

    <p>horizontal</p> Signup and view all the answers

    Match the following terms with their definitions:

    <p>Vertical descent = Transfer of genetic material from parents to offspring Horizontal gene transfer = Transfer of genetic material between different organisms Mutation = Change in DNA sequence that can lead to genetic variation Gene inheritance = Process of receiving genetic information from ancestors</p> Signup and view all the answers

    What does the term 'unity' in biology refer to?

    <p>The common characteristics displayed by all forms of life</p> Signup and view all the answers

    Diversity refers to the shared traits of all living organisms.

    <p>False</p> Signup and view all the answers

    What is the primary factor that explains the unity and diversity of modern species?

    <p>evolution</p> Signup and view all the answers

    Life began on Earth as primitive cells between ____ to ____ billion years ago.

    <p>3.5, 4</p> Signup and view all the answers

    Match the evolutionary concepts with their descriptions:

    <p>Vertical descent with mutation = Transfer of genetic information from parents to offspring Evolutionary history = Understanding the structure and function of organisms Mutations = Changes inherited by offspring from parents Natural selection = Process where organisms better adapted to their environment tend to survive</p> Signup and view all the answers

    How do evolutionary changes typically occur?

    <p>By modifications of pre-existing characteristics</p> Signup and view all the answers

    Walking limbs in some species have evolved into flippers or wings through evolutionary processes.

    <p>True</p> Signup and view all the answers

    What is the role of DNA in vertical descent with mutation?

    <p>DNA carries genetic information from parents to offspring.</p> Signup and view all the answers

    The underlying process of evolution involves the changing __________ composition of a population over time.

    <p>genetic</p> Signup and view all the answers

    What process allows an organism to incorporate genetic material from another organism without being its offspring?

    <p>Horizontal gene transfer</p> Signup and view all the answers

    Adaptations resulting from natural selection can negatively impact an organism's reproductive success.

    <p>False</p> Signup and view all the answers

    What is the main reason for the increase in tuskless elephants in certain populations?

    <p>Poaching</p> Signup and view all the answers

    The concept of _______ selection is driven by human choices in selecting desirable traits.

    <p>artificial</p> Signup and view all the answers

    Match the following concepts with their descriptions:

    <p>Natural Selection = Process where organisms adapt to their environment Horizontal Gene Transfer = Exchange of genetic material between different species Artificial Selection = Selective breeding for desired traits Adaptation = Characteristic that enhances survival and reproduction</p> Signup and view all the answers

    Which of the following statements best describes the connection between poaching and tuskless elephants?

    <p>Tuskless elephants have a higher survival rate due to reduced poaching risks.</p> Signup and view all the answers

    Evolution can only occur through natural selection.

    <p>False</p> Signup and view all the answers

    List the two modes of evolution.

    <p>Natural selection and artificial selection</p> Signup and view all the answers

    Genes providing _______ resistance can sometimes be transferred among bacteria species.

    <p>antibiotic</p> Signup and view all the answers

    What is the approximate percentage of tuskless elephants in well-protected populations?

    <p>Less than 2%</p> Signup and view all the answers

    What is the reason for the increase in tuskless elephants in populations?

    <p>Poaching</p> Signup and view all the answers

    Only females can be tuskless elephants.

    <p>True</p> Signup and view all the answers

    What is the genotype of female tuskless elephants?

    <p>XTXt</p> Signup and view all the answers

    The three domains of life are __________, __________, and __________.

    <p>Bacteria, Archaea, Eukarya</p> Signup and view all the answers

    Match the following taxa with their descriptions:

    <p>Genus = Capitalized and italicized name Species = Not capitalized and italicized name Taxonomy = Grouping of species based on common ancestry Eukarya = Domain for unicellular and multicellular organisms</p> Signup and view all the answers

    Which of these is a characteristic of all organisms classified under the domain Eukarya?

    <p>All have a nucleus in their cells</p> Signup and view all the answers

    All species have a unique scientific name consisting of two parts.

    <p>True</p> Signup and view all the answers

    What is the primary focus of taxonomy in biology?

    <p>Grouping species based on common ancestry.</p> Signup and view all the answers

    The lethal allele for tuskless elephants is represented by the letter __________.

    <p>T</p> Signup and view all the answers

    Which group can be unicellular?

    <p>Fungi</p> Signup and view all the answers

    Study Notes

    Course Information

    • Course name: Biol 190A: Introduction to Cell and Molecular Biology
    • Instructor: Dr. Rafferty
    • Email: [email protected]
    • Office Hours: Tuesdays 10-11am (in-person and Zoom)
    • Office: WHI 309A

    Course Organization

    • Syllabus and policies due Feb 12th
    • Lecture schedule with exam dates noted
    • Syllabus quiz due Jan 31st (minimum score 6.0)
    • BIOL 190 Student Responsibilities Agreement due Jan 31st (minimum score 5.0)
    • Semester refresher assignments
    • Connect orientation videos available
    • Math review available
    • Unit modules provide learning resources

    How to Get Help

    • Online: Class discussion board (monitored by Dr. Rafferty), email to Dr. Rafferty ([email protected]) or Canvas inbox, supplemental instruction with previous 190 student Adam Garcia ([email protected]), UNLV Virtual Tutoring Services
    • In-person: Dr. Rafferty's office hour (Tuesday 10-11am in WHI 309A), Biology Learning Center (WHI Rm 126 - walk-in study room, staffed Mon-Thurs, schedule coming soon), UNLV Tutoring Center (2nd floor Lied Library), Academic Success Center (peer coaches, workshops, and tutoring)

    Pre-chapter Assignments

    • Must be completed by the day the chapter is covered in class
    • Plan the time that works best for your schedule
    • Allow 1-1.5 hours to complete
    • Can start and stop over multiple days
    • Lowest grade dropped at the end of the semester

    Exams

    • Test 1: Feb 12
    • Test 2: Mar 20
    • Test 3: Apr 22
    • Final: May 8
    • Engagement component: 25%
    • Exam component: 75%

    Missed Assignments

    • Assignments have large windows for completion, plan accordingly
    • Connectivity issues during the completion window are not a valid reason for a make-up
    • Utilize on-campus time with good connectivity when completing assignments
    • Review next question or submit button before clicking
    • Email instructor if Connect system is down or a question is not displaying correctly
    • Instructor may offer deadline edits if system issues

    Study Time

    • Biology is difficult due to varied problem solving compared to discrete math problems
    • Plan extra 9+ hours per week to study

    Chapter 2 Study Tips

    • Complete pre-chapter 2 assignments
    • Note topics unclear or questions needing clarification
    • Review posted lecture slides
    • Attend class, pay attention and ask questions during class or small group work
    • Refer to Chapter 2 handout

    Chapter 2 Learning Objectives & Study Plan

    • Review of atomic structure, relating atomic structure to the periodic table, defining orbital and electron shell, explaining isotopes, and listing elements composing most of biological mass.
    • Listing and describing four types of atomic bonds, explaining why polar covalent bonds confer partial charges, and relating charges to ions.
    • Chemical reaction examination to understand chemical equilibrium, defining solute and solvent, comparing hydrophilic and hydrophobic substances, and describing the three states of water.
    • Listing roles of water essential to life, explaining relationship between hydrogen ion concentration and pH, and demonstrating how buffers regulate environments in animal bodies.

    Additional Course Information

    • Email response times within 2 business days (Monday-Friday)
    • Absence procedures, details are in the syllabus.
    • Examples of acceptable and unacceptable absences

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    Related Documents

    Biol 190A: Introduction to Cell and Molecular Biology Lecture Notes PDF

    Description

    This quiz tests your understanding of the policies and principles in Biology 190A, including assignment completion, genetic inheritance, and the definitions of key terms. Prepare to match terms with their meanings and answer questions about studying and the classroom environment.

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