Embryology Quiz

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Questions and Answers

Who proposed the theory of preformationism in embryology?

  • Aristotle
  • Leonardo da Vinci
  • Karl Ernst von Baer
  • Marcello Malpighi (correct)

What is the prevailing notion in western human embryology in the 18th century?

  • Epigenesis
  • Cell theory
  • Spontaneous generation
  • Preformationism (correct)

Who originally proposed the idea of epigenesis in embryonic development?

  • Karl Ernst von Baer
  • Marcello Malpighi
  • Leonardo da Vinci
  • Aristotle (correct)

Who is considered to have developed modern embryology from their work?

<p>Karl Ernst von Baer (C)</p> Signup and view all the answers

Which branch of animal biology studies the prenatal development of gametes, fertilization, and development of embryos and fetuses?

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

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Study Notes

Preformationism and Epigenesis

  • Preformationism was proposed by Bonnet, where he believed that the embryo was preformed in the sperm.
  • In the 18th century, Western human embryology was dominated by preformationism, which posited that the embryo was preformed in either the sperm or egg.

Epigenesis

  • The idea of epigenesis in embryonic development was originally proposed by Aristotle, where the embryo develops from a formless mass through a series of gradual changes.

Development of Modern Embryology

  • Modern embryology was developed from the work of Karl Ernst von Baer, who is considered the father of modern embryology.

Study of Embryonic Development

  • Embryology is the branch of animal biology that studies the prenatal development of gametes, fertilization, and development of embryos and fetuses.

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