BIOL344 – Cell & Developmental Biology Quiz
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Questions and Answers

During which process does the production of eggs or sperm occur?

  • Maturation (correct)
  • Cleavage
  • Gastrulation
  • Fertilization

What is the term for the hollow ball of blastomeres in embryonic development?

  • Blastula (correct)
  • Gastrulation
  • Gametogenesis
  • Organogenesis

Which process involves cell rearrangements that generate three germ layers including ectoderm, mesoderm, and endoderm?

  • Gastrulation (correct)
  • Gametogenesis
  • Maturation
  • Cleavage

What is the function of organogenesis in development?

<p>Production of various body organs (D)</p> Signup and view all the answers

Which stage of frog development involves the rapid partitioning of the zygote cytoplasm into individual cells?

<p>Blastula (C)</p> Signup and view all the answers

What is the main focus of Developmental Biology?

<p>Studying the process of progressive change from fertilized egg to complex multicellular organism (D)</p> Signup and view all the answers

According to Aristotle, what were the two main theories regarding embryonic development?

<p>Every structure in the embryo was preformed from the beginning and simply grew in size (C)</p> Signup and view all the answers

Who provided accurate descriptions of the chick embryo but could not detach from preformationist ideas?

<p>Marcello Malpighi (A)</p> Signup and view all the answers

What did August Weissman propose about the nucleus in 1880?

<p>The nucleus contains various special factors related to differentiation (B)</p> Signup and view all the answers

In embryonic development, what is the primary concern according to Aristotle's theory of preformation?

<p>The embryo containing all structures preformed from the beginning (C)</p> Signup and view all the answers

What is the main purpose of gastrulation during embryonic development?

<p>Cell rearrangements to generate three germ layers (C)</p> Signup and view all the answers

Which process in embryonic development involves the growth, metamorphosis, and sexual maturation of the organism?

<p>Maturation (B)</p> Signup and view all the answers

What is the outcome of organogenesis in development?

<p>Formation of various body organs (D)</p> Signup and view all the answers

What is the significance of cleavage in embryonic development?

<p>Rapid cell divisions to partition zygote cytoplasm (C)</p> Signup and view all the answers

During which stage of frog development does the formation of a hollow ball of blastomeres occur?

<p>Blastula (A)</p> Signup and view all the answers

What was the primary issue that Aristotle defined in embryonic development?

<p>The debate between preformation and epigenesis theories (D)</p> Signup and view all the answers

Which scientist provided remarkably accurate descriptions of the chick embryo but could not detach from preformationist ideas?

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

What concept did August Weissman propose regarding the nucleus in 1880?

<p>The nucleus contained a number of special factors (C)</p> Signup and view all the answers

What did Aristotle suggest about the presence of a tiny human (homunculus) in the head of each human sperm?

<p>It was already present from the very beginnings of development (A)</p> Signup and view all the answers

What was the core debate highlighted by Aristotle regarding embryonic development?

<p>Preformation versus epigenesis theories (A)</p> Signup and view all the answers
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