Refer to the figure showing cytoplasmic factors in a fertilized frog egg. Suppose a researcher experimenting with the frog egg shown in part A removes the vesicles containing the GSK-3 inhibiting protein.What will be the most likely result of this experiment?
A) The embryo will develop into two larvae joined belly-to-belly.
B) No dorsal-ventral axis will be established in the embryo.
C) Anterior structures will form, but posterior structures will not form.
D) Two sets of dorsal structures will form.
E) An embryo with two dorsal-ventral axes will form.

Question

Refer to the figure showing cytoplasmic factors in a fertilized frog egg.  Suppose a researcher experimenting with the frog egg shown in part A removes the vesicles containing the GSK-3 inhibiting protein.What will be the most likely result of this experiment?
A) The embryo will develop into two larvae joined belly-to-belly. 
B) No dorsal-ventral axis will be established in the embryo. 
C) Anterior structures will form, but posterior structures will not form. 
D) Two sets of dorsal structures will form. 
E) An embryo with two dorsal-ventral axes will form.

Quizplus · Accepted Answer

The GSK-3 inhibiting protein is crucial for establishing the dorsal-ventral axis in the developing embryo. Without this protein, the embryo will not be able to establish this axis and will therefore not develop normally. This is most likely to result in the absence of a dorsal-ventral axis in the embryo.

Refer to the Figure Showing Cytoplasmic Factors in a Fertilized