Refer to the Figure Showing Some of the Manipulations Carried

Multiple Choice

Refer to the figure showing some of the manipulations carried out by Spemann on developing amphibians. Experiment 2 resulted in

A) two clumps of undifferentiated cells.
B) two normal embryos.
C) one normal embryo from the side containing gray crescent and one clump of undifferentiated cells from the side lacking gray crescent.
D) two embryos joined at the belly.
E) one normal embryo from the side lacking gray crescent and one clump of undifferentiated cells from the side containing gray crescent.