Question 85

(Multiple Choice)

Use the following information to answer the questions below.
A researcher has arrived at a method to prevent gene expression from Drosophila embryonic genes.The following questions assume that he is using this method.
-When the Bicoid protein is expressed in Drosophila,the embryo is still syncytial (divisions between cells are not yet fully developed).This information 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.
E)Bicoid protein serves as a translational regulator.

Answer