What is the Effect on a Yeast Cell of the Presence

Question

What is the effect on a yeast cell of the presence of a mutant gene involved in vesicle fusion?
A)The ER shrinks.
B)The nucleus becomes swollen.
C)The Golgi complex expands greatly.
D)Cells accumulate expanded ER cisternae.
E)Cells amass an excess number of unfused vesicles.

Accepted Answer

The presence of a mutant gene involved in vesicle fusion impairs the ability of vesicles to fuse with their target membranes, leading to an accumulation of unfused vesicles within the cell. This is because the process of vesicle fusion is crucial for the transport of proteins and lipids between different compartments within the cell, including the delivery of materials to and from the cell surface.