The cell cycle and mitosis

Front

What is the diploid number of chromosomes in a human cell?

Back

The diploid number of chromosomes in a human cell is 46 (2n = 46).

Front

What happens to the surface area to volume ratio during cytokinesis?

Back

The surface area to volume ratio increases during cytokinesis as the cell divides.

Front

During which stage of mitosis does the nuclear envelope reappear?

Back

The nuclear envelope reappears during telophase.

Front

What is a key characteristic of cytokinesis in animal cells?

Back

The presence of a cleavage furrow is a key characteristic of cytokinesis in animal cells.

Front

During which phase of the cell cycle does cell growth primarily occur?

Back

Cell growth primarily occurs during the G1 phase.

Front

What is the purpose of the S phase in the cell cycle?

Back

The S phase is responsible for DNA replication, resulting in two sister chromatids for each chromosome.

Front

What is the role of the spindle fibers during mitosis?

Back

Spindle fibers help separate the sister chromatids and pull them to opposite poles of the cell.

Front

What occurs during prophase of mitosis?

Back

During prophase, chromatin condenses into visible chromosomes, and the nuclear envelope begins to break down.

Front

What is the significance of the G2 phase in the cell cycle?

Back

The G2 phase is important for further cell growth and preparation for mitosis, including the synthesis of proteins necessary for cell division.

Front

What is the difference between cytokinesis in plant and animal cells?

Back

In plant cells, a cell plate forms during cytokinesis, while in animal cells, a cleavage furrow forms.