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Questions and Answers
What is the result of the fusion of the gamete nuclei?
What is the result of the fusion of the gamete nuclei?
- The collection of genes that instruct the embryo to develop (correct)
- The formation of blastomeres
- The establishment of the three germ layers
- The formation of the blastula
What is the purpose of the chemical signals exchanged between the cells of the germ layers?
What is the purpose of the chemical signals exchanged between the cells of the germ layers?
- To initiate gastrulation
- To form specific organs at specific sites (correct)
- To establish the three germ layers
- To trigger the migration of certain cells
What is the term for the series of rapid mitotic divisions that occur immediately after fertilization?
What is the term for the series of rapid mitotic divisions that occur immediately after fertilization?
- Organogenesis
- Fusion
- Cleavage (correct)
- Gastrulation
Which of the following cells undergo long migrations from their place of origin to their final location?
Which of the following cells undergo long migrations from their place of origin to their final location?
What is the term for the stage of embryonic development where the blastomeres undergo dramatic movements and change their positions relative to one another?
What is the term for the stage of embryonic development where the blastomeres undergo dramatic movements and change their positions relative to one another?
What is the primary function of the embryo in the development of an organism?
What is the primary function of the embryo in the development of an organism?
What is the focus of modern developmental biology?
What is the focus of modern developmental biology?
What is the collective term for the stages of development between fertilization and hatching (or birth)?
What is the collective term for the stages of development between fertilization and hatching (or birth)?
What stimulates the egg to begin development and initiates a new individual?
What stimulates the egg to begin development and initiates a new individual?
What is the common sequence of development that all animals, from earthworms to eagles, undergo?
What is the common sequence of development that all animals, from earthworms to eagles, undergo?
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