Which of the following statements about the evolution of notochord development in ascidians is false?
A)The ancestral Brachyury gene exists in invertebrates.
B)Brachyury gene in ascidians has a role in notochord development.
C)In ascidians,the Brachyury T-box region encodes a transcription factor.
D)The Brachyury gene is not present in vertebrates.
E)Since invertebrates do not have notochords,the Brachyury gene must have evolved a new function.

Question

Quizplus · Accepted Answer

The statement "The Brachyury gene is not present in vertebrates" is false because the Brachyury gene is present in vertebrates and plays a role in notochord development in these organisms.

Which of the Following Statements About the Evolution of Notochord