Unit 7 Review

Front

What are spindle fibers?

Back

Structures created by centrioles that pull chromatids apart during cell division.

Front

What are sister chromatids?

Back

Exact copies of one another formed during DNA replication.

Front

How many chromosomes are in a single human daughter cell after mitosis?

Back

46 chromosomes.

Front

What phases of the cell cycle are included in interphase?

Back

G1, S, and G2 phases.

Front

How many times does DNA replicate before mitosis?

Back

DNA replicates once before mitosis.

Front

What is the role of centromeres?

Back

Centromeres are the regions where sister chromatids are joined together.

Front

What occurs during cytokinesis?

Back

The cytoplasm divides, resulting in two separate daughter cells.

Front

What is the significance of the G1 phase?

Back

The cell grows and prepares for DNA replication.

Front

What happens during the S phase of interphase?

Back

DNA replication occurs, resulting in sister chromatids.

Front

What is the function of the mitotic spindle?

Back

To separate sister chromatids during mitosis.