BIO207H5S Introductory Genetics Winter 2024 Lecture 1
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Questions and Answers

What is the definition of a gene?

  • An attribute or feature possessed by an organism
  • An inherited factor that helps determine a characteristic (correct)
  • One of two or more alternative forms of a gene
  • Specific place on a chromosome occupied by an allele

    • Which principle states that each individual possesses two alleles for any particular trait, one inherited from the maternal parent and one from the paternal parent?

  • Punnett Square Principle
  • Mendel's Backcross Principle
  • Principle of Independent Assortment
  • Principle of Segregation (correct)

    • What does a dihybrid cross involve?

  • Crossing F1 generation plants with their parental generation
  • Crossing two varieties of pea plants that differ in height
  • Performing crosses in which the varieties of peas differ in two characteristics (correct)
  • Crossing two different species of plants

    • What does the Punnett square help predict?

    <p>Phenotypic ratios of progeny from a genetic cross</p> Signup and view all the answers

    What does the Principle of Independent Assortment state?

    <p>Alleles at different loci separate independently of one another</p> Signup and view all the answers

    What is the purpose of a backcross?

    <p>To test or reveal the genotype of the first individual</p> Signup and view all the answers

    What is the probability range for genetic events?

    <p>0 to 1</p> Signup and view all the answers

    When did Mendel establish that tall (T) was dominant to short (t)?

    <p>During monohybrid crosses</p> Signup and view all the answers

    What does a testcross involve?

    <p>Crossing an individual of unknown genotype with a homozygous recessive individual</p> Signup and view all the answers

    What are homologous chromosomes responsible for during meiosis?

    <p>They segregate from each other.</p> Signup and view all the answers

    What is the purpose of a Punnett square?

    <p>To predict genotypic and phenotypic ratios.</p> Signup and view all the answers

    What does a dihybrid cross reveal?

    <p>The principle of independent assortment.</p> Signup and view all the answers

    What is the primary source of information for this course?

    <p>Lecture slides, classroom discussion, and tutorials</p> Signup and view all the answers

    Who is the instructor for this course?

    <p>Preeti Karwal</p> Signup and view all the answers

    When are the office hours scheduled for Monday?

    <p>11:00 AM - 12:00 PM</p> Signup and view all the answers

    Who is responsible for TUT0109 and TUT0111?

    <p>Farhan Majumder</p> Signup and view all the answers

    What textbooks are recommended for this course?

    <p>Genetics: A Conceptual Approach 7th ed. - W.H. Freeman &amp; company, New York and Genetics: Analysis of Genes and Genomes 9th Edition - Jones &amp; Bartlett Publishers</p> Signup and view all the answers

    In which classroom is the class held on Tuesday at 11:00 AM - 01:00 PM?

    <p>IB 110</p> Signup and view all the answers

    What type of exam is the Final Exam?

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

    How many term tests will count toward the final grade?

    <p>The two highest-scored ones</p> Signup and view all the answers

    What is the purpose of the Absence Declaration tool on ACORN?

    <p>To declare an absence in term tests</p> Signup and view all the answers

    What did Gregor Johann Mendel study?

    <p>Genetics and heredity</p> Signup and view all the answers

    What was the focus of Mendel's experiments with garden pea plants?

    <p>Analyzing hereditary traits</p> Signup and view all the answers

    What was the outcome of Mendel's work around year 1900?

    <p>His conclusions were confirmed by others</p> Signup and view all the answers

    What was developed in the early 1900s by Sutton and Boveri?

    <p>Chromosomal theory of heredity</p> Signup and view all the answers

    Which characteristic did Mendel term as dominant in his experiments?

    <p>$F1$ phenotype traits</p> Signup and view all the answers

    What did Mendel draw conclusions about from his monohybrid crosses?

    <p>$F1$ plants inherit genetic factors from both parents</p> Signup and view all the answers

    What is the concept or law that states when two different alleles are present in a genotype, only the trait encoded by one of them—the dominant allele—is observed in the $F1$ phenotype?

    <p>The Law of Dominance</p> Signup and view all the answers

    What did Mendel term as recessive in his experiments?

    <p>Traits that disappeared in the $F1$ heterozygous offspring</p> Signup and view all the answers

    Who is the instructor for the BIO207H5S LEC0101 course?

    <p>Preeti Karwal</p> Signup and view all the answers

    When are the office hours for Preeti Karwal scheduled?

    <p>Monday 11:00 AM - 12:00 PM</p> Signup and view all the answers

    Who is the Admin TA for TUT0106 and TUT0108?

    <p>Eniolaye Balogun</p> Signup and view all the answers

    Which textbook is mentioned for the course BIO207H5S LEC0101?

    <p>Genetics: A Conceptual Approach 7th ed. - W.H. Freeman &amp; company, New York.</p> Signup and view all the answers

    Which TA is responsible for TUT0105 and TUT0107?

    <p>Neha Purakan</p> Signup and view all the answers

    Where are the tutorials held for TUT0114 and TUT0116?

    <p>DV3093CD</p> Signup and view all the answers

    What was the primary method used by Mendel in his experiments?

    <p>Adopting an experimental approach and conducting crosses</p> Signup and view all the answers

    What was the significance of Mendel interpreting his results using mathematics?

    <p>It enabled him to keep careful records of progeny and compute ratios</p> Signup and view all the answers

    Why were garden pea plants suitable for Mendel's experiments?

    <p>They were self-fertilizing and produced many offspring</p> Signup and view all the answers

    What did Mendel term as dominant and recessive traits?

    <p>Dominant traits appeared unchanged in F1 heterozygous offspring</p> Signup and view all the answers

    What conclusion did Mendel draw from the results of his monohybrid crosses?

    <p>Each plant possesses only one genetic factor encoding a characteristic</p> Signup and view all the answers

    What is the Concept or Law of Dominance according to Mendel's experiments?

    <p>The dominant allele is always observed in the F1 phenotype</p> Signup and view all the answers

    What was the significance of Mendel conducting monohybrid crosses?

    <p>It enabled him to study the inheritance of a single characteristic at a time</p> Signup and view all the answers

    What led to Mendel's work being unappreciated for about 34 years after it was published?

    <p>Lack of understanding and acceptance of his groundbreaking conclusions</p> Signup and view all the answers

    How did Mendel's experiments differ from earlier investigators?

    <p>Adopted an experimental approach and conducted crosses based on initial hypotheses.</p> Signup and view all the answers

    Why did Mendel use garden pea plants for his experiments?

    <p>Because they were known to differ in detectably distinct characters.</p> Signup and view all the answers

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