Cell Cycle and Mitosis Pre-AP

Front

What are sister chromatids?

Back

Sister chromatids are identical copies of a chromosome, connected by a centromere, that are formed during DNA replication.

Front

What occurs during interphase?

Back

Interphase consists of three phases: G1 (cell growth), S (DNA synthesis), and G2 (preparation for mitosis).

Front

What is the role of the spindle apparatus during mitosis?

Back

The spindle apparatus separates sister chromatids and pulls them to opposite poles of the cell during mitosis.

Front

What are the characteristics of daughter cells produced by mitosis?

Back

The two daughter cells are identical to each other and to the parent cell, maintaining the same chromosome number.

Front

What does it indicate if most cells in a tissue are in some stage of mitosis?

Back

It indicates that the tissue is actively growing and undergoing cell division.

Front

Define the G1 phase of the cell cycle.

Back

The G1 phase is the first stage of interphase where the cell grows and synthesizes proteins necessary for DNA replication.

Front

What happens during the S phase of the cell cycle?

Back

During the S phase, DNA is replicated, resulting in the formation of sister chromatids.

Front

What is the G2 phase?

Back

The G2 phase is the final stage of interphase where the cell prepares for mitosis by producing necessary proteins and organelles.

Front

What is cytokinesis?

Back

Cytokinesis is the process that follows mitosis, where the cytoplasm divides, resulting in two separate daughter cells.

Front

What is the significance of the centromere?

Back

The centromere is the region of a chromosome where sister chromatids are joined and where the spindle fibers attach during mitosis.