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.
Correct Answer:

Verified
Correct Answer:
Verified
Q4: A human embryo has webbed fingers. Why
Q24: The nervous system forms from the<br>A) ectoderm.<br>B)
Q27: The birth defect spina bifida results in
Q29: A _is a fertilized egg.
Q32: Prior to birth, stretching of the cervix
Q34: The cells of an aging animal function
Q90: Newborn animals that closely resemble the adults
Q98: The extraembryonic membrane that sends blood vessels
Q102: If a cell lacks transcription factors, _will
Q105: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB1444/.jpg" alt=" -The fluid the