In the 1920s, Two German Embryologists, Hans Spemann and Hilde

question 29

Multiple Choice

In the 1920s, two German embryologists, Hans Spemann and Hilde Mangold, demonstrated that a small patch of cells, called the dorsal lip of the blastopore, would

• A) become the neural tube.
• B) form the chorion.
• C) become the digestive tract.
• D) induce the surrounding cells to differentiate.
• E) lack the genes necessary to develop the embryo.