Spemann's Organizer: Controller of Cell Fate


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question 1 of 3

Which of the following is true about Spemann's experiments with 2-cell-stage embryos?

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1. Which of the following refers to the underbelly side of an animal?

2. How were Spemann and Mangold able to tell that the organizer was directing cells of the host embryo to change their fates?

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About This Quiz & Worksheet

Spemann's organizer is an important part of understanding the formation of embryos. This quiz/worksheet combo will assess your understanding of the formation of embryos, including what role the organizer plays.

Quiz & Worksheet Goals

In these assessments, you'll be tested on:

  • Understanding the results of Spemann's experiments
  • Defining the node
  • Determining what parts of an embryo are organizers

Skills Practiced

This quiz and worksheet allow students to test the following skills:

  • Reading comprehension - ensure that you draw the most important information from the related Spemann's organizer lesson
  • Defining key concepts - ensure that you can accurately define main phrases, such as the node
  • Knowledge application - use your knowledge to answer questions about Spemann's organizer

Additional Learning

To learn more about Spemann's organizer, review the accompanying lesson Spemann's Organizer: Controller of Cell Fate. This lesson covers the following objectives:

  • Explaining the history of developmental biology, including early experiments in manipulating embryos
  • Detailing Hans Spemann's experiments with embryos
  • Defining terms like ventral, dorsal, and anterior
  • Providing an explanation of how Spemann's experiment changed our understanding of developmental biology