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 (D)</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 (B)</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 (A)</p> Signup and view all the answers

What is the probability range for genetic events?

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

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

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

What does a testcross involve?

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

What are homologous chromosomes responsible for during meiosis?

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

What is the purpose of a Punnett square?

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

What does a dihybrid cross reveal?

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

What is the primary source of information for this course?

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

Who is the instructor for this course?

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

When are the office hours scheduled for Monday?

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

Who is responsible for TUT0109 and TUT0111?

<p>Farhan Majumder (C)</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 (D)</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 (A)</p> Signup and view all the answers

What type of exam is the Final Exam?

<p>Cumulative (B)</p> Signup and view all the answers

How many term tests will count toward the final grade?

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

What did Gregor Johann Mendel study?

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

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

<p>Analyzing hereditary traits (D)</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 (C)</p> Signup and view all the answers

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

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

Which characteristic did Mendel term as dominant in his experiments?

<p>$F1$ phenotype traits (B)</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 (B)</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 (B)</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 (C)</p> Signup and view all the answers

Who is the instructor for the BIO207H5S LEC0101 course?

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

When are the office hours for Preeti Karwal scheduled?

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

Who is the Admin TA for TUT0106 and TUT0108?

<p>Eniolaye Balogun (B)</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. (D)</p> Signup and view all the answers

Which TA is responsible for TUT0105 and TUT0107?

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

Where are the tutorials held for TUT0114 and TUT0116?

<p>DV3093CD (D)</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 (C)</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 (B)</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 (B)</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 (C)</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 (B)</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 (B)</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 (C)</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 (B)</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. (D)</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. (D)</p> Signup and view all the answers
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