Question 13
(Multiple Choice)
In the following schematic drawing of connexons as seen from the cytosol of a cell, what is the approximate diameter of each of the pores? Which of the indicated connexons (1 or 2) is more likely to have been incorporated more recently? 
A) About 20 nm; connexon 1
B) About 4 nm; connexon 1
C) About 1.5 nm; connexon 1
D) About 4 nm; connexon 2
E) About 1.5 nm; connexon 2
Answer