If you experimentally removed the GSK-inhibiting protein from a fertilized amphibian egg, a likely result would be
A) more glycogen synthase kinase-3 (GSK-3) on the dorsal side than on the ventral side of the embryo.
B) more β-catenin on the ventral side than on the dorsal side of the embryo.
C) a redistribution of β-catenin to the dorsal side of the embryo.
D) an inversion of the anterior-posterior axis.
E) a disruption of the dorsal-ventral axis.

Question

Quizplus · Accepted Answer

Glycogen synthase kinase-3 (GSK-3) inhibition is crucial for the stabilization and accumulation of β-catenin on the dorsal side of the embryo, which is essential for the proper establishment of the dorsal-ventral axis in amphibian embryos. Removing the GSK-inhibiting protein would lead to excessive GSK-3 activity, preventing the accumulation of β-catenin on the dorsal side, thereby disrupting the dorsal-ventral axis formation.

If You Experimentally Removed the GSK-Inhibiting Protein from a Fertilized