What is the distribution of Ran/GTP and Ran/GDP across the nuclear envelope?
A) Ran/GTP is primarily found in the nucleus, while Ran/GDP is mainly located in the cytoplasm.
B) Both Ran/GTP and Ran/GDP are evenly distributed across the nuclear envelope.
C) Ran/GTP is primarily found in the cytoplasm, while Ran/GDP is mainly located in the nucleus.
D) Ran/GTP and Ran/GDP are segregated to specific regions within the nuclear envelope, with distinct concentrations in each region.