A particular strain of yeast produces strains with a mutant cdC₂ gene,resulting in little to no production of the CdC₂ protein kinase.As a result,one would expect that these cells would
A)not enter M phase.
B)not have the nuclear envelope disperse.
C)lack chromosome condensation.
D)all of the above
E)none of the above

Question

Quizplus · Accepted Answer

The CdC₂ protein kinase is a key regulator of M phase of the cell cycle, and its absence would result in the cell's inability to enter M phase. Additionally, CdC₂ is also involved in the dispersal of the nuclear envelope and the condensation of chromosomes during M phase. Therefore, the mutant cells lacking CdC₂ would likely not have the nuclear envelope disperse and lack chromosome condensation, making D) all of the above the best choice.

A Particular Strain of Yeast Produces Strains with a Mutant