BIOS 3200 Final Exam Questions And Correct Answers 2025 Updated.

Intermediate filaments inside the nucleus are composed primarily of a protein called _______________. - Answer lamin Match the event or process with phase of the cell cycle in which it occurs. Replication of the centrosome - Answer interphase Match the event or process with phase of the cell cycle in which it occurs. Linear alignment of the chromosomes - Answer metaphase Match the event or process with phase of the cell cycle in which it occurs. Separation of sister chromatids - Answer anaphase Match the event or process with phase of the cell cycle in which it occurs. Formation of new nuclei - Answer telophase Which of these molecules is added to proteins to mark them for destruction? - Answer ubiquitin Members of the _________ family of proteins are inhibitors of apoptosis. - Answer Bcl12 Members of Bcl12 family promote programmed cell death. What do they do that initiates the cell death process? - Answer cause the release of cytochrome c from the mitochondria Cyclins are named because their concentrations in the cell oscillate on a regular cycle. How does the cell cause these oscillations? - Answer Cyclins contain signal sequences for the addition of a protein destruction molecule. How does S-phase cyclin-Cdk complex (S-Cdk) initiate DNA replication AND prevent it from recurring? - Answer S-Cdk causes the destruction of a replication inhibitor protein which also supports the formation of the DNA replication complex.