Unit 4 Review

Front

What stage of mitosis is characterized by chromosomes lining up at the cell's equator?

Back

Metaphase

Front

What does DNA condense into during cell division?

Back

Chromosomes

Front

What is the role of checkpoints in the cell cycle?

Back

They check to make sure the cells went through the stage correctly, and stop the cell from dividing uncontrollably.

Front

According to Chargaff's Rule, which nitrogen base pairs with cytosine?

Back

Guanine

Front

In DNA, what type of bonds hold the sugar and phosphates together?

Back

Strong covalent bonds

Front

In DNA, what type of bonds hold the nitrogen bases together?

Back

Weak hydrogen bonds

Front

What is the function of the centromere in a chromosome?

Back

It holds the two sister chromatids together and is the attachment point for spindle fibers during cell division.

Front

What is the significance of interphase in the cell cycle?

Back

It is the stage where the cell grows, duplicates its DNA, and prepares for mitosis.

Front

What happens during anaphase of mitosis?

Back

Sister chromatids are pulled apart to opposite poles of the cell.

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.