AP Bio - Ch. 12

Front

What is the purpose of DNA replication before cell division?

Back

To ensure that genetic information is accurately transferred into daughter cells.

Front

During which phase of interphase does DNA duplication occur?

Back

S Phase.

Front

What is the point of attachment between two sister chromatids called?

Back

Centromere.

Front

How does the concentration of cyclin dependent kinases (Cdk) change throughout the cell cycle?

Back

Cdk concentration remains constant.

Front

Why do neurons divide very rarely?

Back

They have entered G0 phase.

Front

What is the role of cyclins in the cell cycle?

Back

Cyclins regulate the progression of the cell cycle by activating cyclin-dependent kinases (Cdks).

Front

What is the difference between mitosis and meiosis?

Back

Mitosis results in two identical daughter cells, while meiosis results in four genetically diverse gametes.

Front

What is the function of the spindle apparatus during cell division?

Back

The spindle apparatus helps separate sister chromatids and pull them to opposite poles of the cell.

Front

What happens during the G1 phase of interphase?

Back

The cell grows and synthesizes proteins necessary for DNA replication.

Front

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

Back

The M phase is where mitosis and cytokinesis occur, leading to cell division.