Biology Chapter 4: Induction and Competence
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Questions and Answers

What is a characteristic of reciprocal inductions?

  • One tissue fully differentiates before inducing another
  • Inductions only occur between fully formed tissues
  • A tissue can have a critical function before full differentiation (correct)
  • A structure needs to be fully differentiated to have a function

    • What is the result of the lens inducing the optic vesicle?

  • The optic vesicle becomes the pigmented retina
  • The optic vesicle becomes the optic cup (correct)
  • The optic vesicle becomes the surface ectoderm
  • The optic vesicle becomes the neural retina

    • What is an example of a developmental disorder related to Pax6?

  • Aniridia (correct)
  • Anophthalmia
  • Microphthalmia
  • Coloboma

    • What is the term for the process by which one tissue influences the development of another?

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

    What is the role of the lens in eye development?

    <p>It induces the surface ectoderm to become the lens</p> Signup and view all the answers

    What is the result of the optic vesicle inducing the surface ectoderm?

    <p>The surface ectoderm becomes the lens</p> Signup and view all the answers

    What is the term for the process by which tissues interact and influence each other's development?

    <p>Cell-to-cell communication</p> Signup and view all the answers

    What is the significance of reciprocal inductions in development?

    <p>They allow for transient functions in building organs</p> Signup and view all the answers

    What is the term for the process by which cells from one tissue interact with cells from another tissue?

    <p>Epithelial-mesenchymal interaction</p> Signup and view all the answers

    What is the role of Pax6 in development?

    <p>It regulates tissue development and organogenesis</p> Signup and view all the answers

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