Which of the following are NOT conserved between vertebrates and invertebrates?
A) Dorsoventral patterning of the nerve cord by TGFβ/BMP signaling
B) Antagonism of TGFβ/BMP signaling by sog/chordin
C) Expression of TGFβ/BMP in the dorsal part of the early embryo
D) Expression of Msh/Msx in the dorsal part of the nerve cord
E) None of the above

Question

Quizplus · Accepted Answer

Antagonism of TGFβ/BMP signaling by sog/chordin is responsible for dorsoventral patterning of the nerve cords of both vertebrates and invertebrates, and the same transcription factors, including Msh/Msx, partition the nerve cords along the D/V axis at a later stage. However, TGFβ/BMP is expressed on the ventral side of the early vertebrate embryo but on the dorsal side of the early invertebrate embryo.

Which of the Following Are NOT Conserved Between Vertebrates and Invertebrates