Cell cycle, mitosis, and cancer

Front

What are proto-oncogenes?

Back

Proto-oncogenes are normal genes that can become oncogenes due to mutations, leading to uncontrolled cell growth.

Front

What is the purpose of the cell cycle?

Back

The cell cycle is essential for the growth of an organism and the repair of damaged tissue.

Front

What happens during the anaphase stage of mitosis?

Back

During anaphase, sister chromatids are separated and move to opposite ends of the cell.

Front

What is cytokinesis?

Back

Cytokinesis is the process where the cell membrane pinches off to form two new daughter cells after mitosis.

Front

How does cancer affect the cell cycle?

Back

Cancer disrupts the normal regulation of the cell cycle, leading to the formation of abnormal cells.

Front

What is the role of tumor suppressor genes?

Back

Tumor suppressor genes help regulate cell division and prevent uncontrolled growth; mutations can lead to cancer.

Front

What is mitosis?

Back

Mitosis is the process of cell division that results in two identical daughter cells, each with the same number of chromosomes as the parent cell.

Front

What is the difference between oncogenes and tumor suppressor genes?

Back

Oncogenes promote cell division and growth, while tumor suppressor genes inhibit it.

Front

What occurs during the G1 phase of the cell cycle?

Back

During the G1 phase, the cell grows and prepares for DNA replication.

Front

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

Back

The S phase is when DNA replication occurs, resulting in two copies of each chromosome.