Developmental Patterning: Differentiation and Cell Commitment
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Questions and Answers

What is the term for when a cell or tissue is capable of differentiating autonomously even when placed into another region of the embryo or a cluster of differently specified cells in a petri dish?

  • Commitment
  • Differentiation
  • Specification
  • Determination (correct)
  • Which stage of embryogenesis involves the irreversible commitment of a cell to a specific fate?

  • Determination (correct)
  • Differentiation
  • Specification
  • Autonomous Specification
  • What is the type of specification where the blastomeres of the early embryo are apportioned a set of critical determination factors within the egg cytoplasm?

  • Conditional Specification
  • Tissue Specification
  • Syncytial Specification
  • Autonomous Specification (correct)
  • What are the molecules that regulate gene expression in a manner that directs the cell into a particular path of development, influencing cell fate?

    <p>Transcription factors</p> Signup and view all the answers

    What is the term for the process by which an undifferentiated cell matures through specific stages that cumulatively commit it to a specific fate?

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

    What is the stage where a cell or tissue type is able to differentiate according to its specified fate even when placed into another region of the embryo or a cluster of differently specified cells in a petri dish?

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

    What is the process of generating specialized cell types called?

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

    What occurs during differentiation?

    <p>A cell ceases to divide and develops specialized structural elements and distinct functional properties.</p> Signup and view all the answers

    What happens during the specification stage of commitment?

    <p>The fate of a cell or tissue becomes specified.</p> Signup and view all the answers

    What is the purpose of testing the fate of a specified cell with a population of differently specified cells?

    <p>To determine if the specified cell's fate is alterable.</p> Signup and view all the answers

    What is the difference between specification and differentiation?

    <p>Specification is a labile stage, while differentiation is a fixed stage.</p> Signup and view all the answers

    What happens if a specified cell is placed in an environment that is neutral with respect to its developmental pathway?

    <p>The cell differentiates autonomously.</p> Signup and view all the answers

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