Exam 10: Chromosomes, Mitosis, and Meiosis

Cell-cycle checkpoints temporarily block key events from being initiated during the cell cycle.

Enzymes required for DNA replication are synthesized during the G₁ phase.

Once nerve cells become mature, they do not typically undergo cell division. Based on your knowledge of the cell cycle, you might predict that mature nerve cells become arrested in the ____ of the cell cycle.

In the cell cycle, DNA is replicated during the G₂ phase.

During which stage of meiosis do the sister chromatids separate?

At the completion of oogenesis, ____ are produced.

To prevent disastrous consequences, the eukaryotic cell cycle is controlled by

What is the function of kinetochores?

A bacterial chromosome consists of a

In animal cells, cytokinesis occurs via the formation of a cell plate.

____ ______________organized on chromosomes carry the information that controls the functions of the cell.

When is a cell in metaphase?

Briefly describe how the cell cycle is controlled and why phosphorylation of proteins plays a major role.

Duplicated centrioles move to opposite poles of a dividing ____ cell during the ____ of the cell cycle.

Nucleosomes are best described as

A cell in the G₂ phase

The cell cycle of a typical somatic cell consists of the ____ and M phases.