Multiple Choice
One of Hans Spemann's important experiments involved
A) dividing human embryos into equal halves.
B) killing a single cell in a sea urchin embryo to study the effects.
C) dividing a frog embryo in two using a strand of his daughter's hair.
D) removing cytoplasm from muscle cells and transplanting it into a fertilized egg.
E) All of the above
Correct Answer:
Verified
Correct Answer:
Verified
Q87: _ are essential transcription factors to the
Q88: In mammals and birds, the _ is
Q89: In which of the following animals is
Q90: Gradients of Noggin and Chordin are signaling
Q91: Compare cleavage in birds and in mammals.
Q93: In chicks, the first extraembryonic membrane to
Q94: Peripheral nerves are derived from<br>A) mesodermal tissue.<br>B)
Q95: The order in which mammalian Hox genes
Q96: All of the following are features unique
Q97: The epiblast and the hypoblast are structures