Autumn Examinations 2010/ 2011
Exam Code(s)
3BS9, 3MR1, 3MR3
Exam(s)
3rd Undenominated Science, 3rd Marine Science
Module Code(s)
ZO313
Module(s)
Evolutionary and Developmental Zoology
Paper No.
1
External Examiner(s)
Prof. M. Davies
Internal Examiner(s)
Prof. W. Arthur
*Dr. U. Frank
Dr. A.M. Power
Dr. G. Schlosser
Instructions:
Answer four questions, at least one from each section.
Duration
3 hrs
No. of Pages
2
Department(s)
Zoology
SECTION A (Dr. G. Schlosser) (answer at least one)
1. Briefly describe how the vertebrate brain develops from a gastrula stage
embryo to the five vesicle stage. Give examples of brain parts derived from
each of the five divisions and briefly discuss their function.
2. Discuss how axons are guided to their proper targets during neural
development. Address a) how the behaviour of the growth cone is modulated,
and b) which types of guidance cues it follows, giving at least one example for
each type.
3. An action potential arrives at a chemical synapse. Shortly later an excitatory
postsynaptic potential is recorded at the postsynaptic membrane. Explain what
happens in between at a molecular level.
p.t.o.
