Cell Cycle Staar Practice Questions

Front

What is the cell cycle?

Back

The cell cycle is a series of phases that a cell goes through to grow and divide, including interphase (G1, S, G2) and mitosis.

Front

What occurs during the S phase of the cell cycle?

Back

During the S phase, DNA replication occurs, resulting in two identical sets of chromosomes.

Front

What is interphase?

Back

Interphase is the phase of the cell cycle where the cell prepares for division, consisting of G1, S, and G2 phases.

Front

What is mitosis?

Back

Mitosis is the process of cell division that results in two genetically identical daughter cells.

Front

What are oncogenes?

Back

Oncogenes are mutated forms of genes that can lead to uncontrolled cell division and the formation of tumors.

Front

What is the difference between benign and malignant tumors?

Back

Benign tumors are non-cancerous and do not spread, while malignant tumors are cancerous and can invade nearby tissues.

Front

What happens during prophase?

Back

During prophase, chromatin condenses into visible chromosomes, the nuclear membrane breaks down, and the mitotic spindle begins to form.

Front

What is the role of the mitotic spindle?

Back

The mitotic spindle helps separate the chromosomes during mitosis, ensuring each daughter cell receives the correct number of chromosomes.

Front

What occurs during the G1 phase?

Back

During the G1 phase, the cell grows and synthesizes proteins necessary for DNA replication.

Front

What occurs during the G2 phase?

Back

During the G2 phase, the cell continues to grow and prepares for mitosis by producing the necessary proteins and organelles.