Question

which of the following results, one hour after membrane fusion, best supports the alternative hypothesis that the cell membrane is a fluid mosaic?

Explanation:

The fluid - mosaic model of the cell membrane suggests that membrane components such as proteins and lipids can move laterally within the membrane. After membrane fusion, if the membrane is a fluid mosaic, we would expect the proteins (represented by the dots in the options) from the two fused membranes to intermix. Option C likely shows an intermixing of proteins from the two original membranes, which supports the fluid - mosaic hypothesis.

Answer:

C.