Answer:
The sequence given is:
5'....GUGUGUGU...3'
a. The two base, not overlapping model would be as follows:
GU GU GU GU
b. The two base overlapping model would be as follows:
GU UG GU UG GU UG GU UG
c. The three base non-overlapping model would be as follows:
GUG UGU GU
d. The three base overlapping model would be as follows:
GUG UGU GUG UGU GUG UGU GU
e. The four base non-overlapping model would be as follows:
GUGU GUGU