The graph below shows the normal concentration of morphogens A and B throughout a Drosophila embryo.

If morphogen B is injected into the head end of an embryo,the embryo is likely to develop
A) normally.
B) a second tail at the head end.
C) a second head at the tail end.
D) two heads at the head end.

Question

The graph below shows the normal concentration of morphogens A and B throughout a Drosophila embryo.

If morphogen B is injected into the head end of an embryo,the embryo is likely to develop
A) normally. 
B) a second tail at the head end. 
C) a second head at the tail end. 
D) two heads at the head end.

Quizplus · Accepted Answer

The Answer of The graph below shows the normal concentration of morphogens A and B throughout a Drosophila embryo.

If morphogen B is injected into the head end of an embryo,the embryo is likely to develop
A) normally. 
B) a second tail at the head end. 
C) a second head at the tail end. 
D) two heads at the head end.

The Graph Below Shows the Normal Concentration of Morphogens a and B