Examine the figure and statements below. Which one of the statements is incorrect?
A. mRNA for caudal and hunchback are
evenly distributed in the oocyte, but bicoid
and nanos mRNA are located either anteriorly
or posteriorly, respectively.
B. Bicoid protein promotes the transcription of
the hunchback gene in the anterior region of
the embryo.
C. Nanos protein represses the translation of
hunchback mRNA in the posterior region of
the embryo.
D. Bicoid protein represses the translation of
caudal mRNA in the anterior region of the
embryo.
E. The expression pattern of Caudal and
Hunchback proteins is an example of gene
regulation at the level of translation.
B
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