Genetic Engineering and Mendelian Genetics Review
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Questions and Answers

What was the primary focus of Gregor Mendel's experiments?

  • Discovering the structure of DNA
  • Cultivating and testing 28,000 pea plants
  • Studying the inheritance of traits in pea plants (correct)
  • Developing the Laws of Inheritance

    • What did Mendel discover about the 'particles' of inheritance?

  • They were actually chromosomes and DNA (correct)
  • They were the fundamental units of heredity
  • They were the basis of Mendelian Genetics
  • They were dominant and recessive genes

    • What is the definition of a 'trait' in genetics?

  • The study of heredity
  • The combination of genes that determine a physical characteristic
  • The process of passing traits from parent to offspring
  • Any characteristic that can be passed from parent to offspring (correct)

    • What type of genetic cross involves a single trait?

    <p>Monohybrid Cross</p> Signup and view all the answers

    What is the definition of a 'homozygous genotype'?

    <p>Both a and b</p> Signup and view all the answers

    What is the 'stronger' of the two genes expressed in a hybrid called?

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

    What is one of the possible modifications in genetic engineering mentioned in the text?

    <p>Enhancing a present trait by increasing the expression of the desired gene</p> Signup and view all the answers

    Which organism is resistant to cornborer disease due to genetic modification?

    <p>Bt Corn</p> Signup and view all the answers

    What is the main function of Bacillus thuringiensis in genetically modified plants?

    <p>Resisting insect pests</p> Signup and view all the answers

    Which statement is true about Bt toxin genes in genetically modified crops?

    <p>They enhance resistance to insect pests</p> Signup and view all the answers

    What is one of the potential applications of genetic engineering mentioned in the text?

    <p>Producing human insulin</p> Signup and view all the answers

    Which quote is attributed to Edward Abbey in the text?

    <p>&quot;We must learn how to think not only logically, but bio-logically.&quot;</p> Signup and view all the answers

    What is the phenotype?

    <p>The physical feature resulting from a genotype</p> Signup and view all the answers

    What is rDNA in genetic engineering?

    <p>A form of artificial DNA created by combining two or more sequences</p> Signup and view all the answers

    What is the main goal of genetic engineering?

    <p>Modifying organisms with desired changes through DNA manipulation</p> Signup and view all the answers

    Which type of breeding involves gene splicing to create artificial DNA?

    <p>Recombinant DNA Technology</p> Signup and view all the answers

    What is the purpose of selecting parents in classical breeding?

    <p>To exemplify desirable traits</p> Signup and view all the answers

    Which technology allows for the modification of a single trait in an organism?

    <p>Recombinant DNA Technology</p> Signup and view all the answers

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