10 Questions
What is the result of the fusion of the gamete nuclei?
The collection of genes that instruct the embryo to develop
What is the purpose of the chemical signals exchanged between the cells of the germ layers?
To form specific organs at specific sites
What is the term for the series of rapid mitotic divisions that occur immediately after fertilization?
Cleavage
Which of the following cells undergo long migrations from their place of origin to their final location?
Blood cells, lymph cells, pigment cells, and gametes
What is the term for the stage of embryonic development where the blastomeres undergo dramatic movements and change their positions relative to one another?
Gastrulation
What is the primary function of the embryo in the development of an organism?
To translate genotype to phenotype
What is the focus of modern developmental biology?
The investigation of temporal changes in gene expression and anatomical organization
What is the collective term for the stages of development between fertilization and hatching (or birth)?
Embryogenesis
What stimulates the egg to begin development and initiates a new individual?
Fusion of the gamete cells
What is the common sequence of development that all animals, from earthworms to eagles, undergo?
Fertilization, cleavage, gastrulation, organogenesis, birth, metamorphosis, gametogenesis
Learn about the cycle of life, from embryo to adult, and the process of developmental biology. Discover how inherited genes are expressed and how organisms are built.
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