When the Bicoid protein is expressed in Drosophila,the embryo is still syncytial (divisions between cells are not yet fully developed).This helps to explain which observation by Nüsslein-Volhard and Wieschaus?
A)mRNA from the egg is translated into the Bicoid protein.
B)Bicoid protein diffuses throughout the embryo in a concentration gradient.
C)Bicoid protein serves as a transcription regulator.
D)Bicoid protein determines the dorsoventral axis of the embryo.

Question

Quizplus · Accepted Answer

The fact that the embryo is still syncytial indicates that the divisions between cells are not yet fully developed, meaning that the Bicoid protein can diffuse freely throughout the embryo to create a concentration gradient that specifies the anterior-posterior axis of the developing embryo.

When the Bicoid Protein Is Expressed in Drosophila,the Embryo Is