Unit 6 Cell Cycle

What is the purpose of the centrosomes during mitosis?

• replicate DNA

• increase cell volume

• connect to spindle fibers

• dissolve nuclear envelope

Answer explanation

Centrosomes connect spindle fibers to move chromosomes around the cell during mitosis.

Which of the following represents the phase of mitosis in their proper sequence

• Prophase, telophase, metaphase, anaphase

• Prophase, metaphase, anaphase, telophase

• Metaphase, prophase, telophase, anaphase

• Telophase, prophase, metaphase, anaphase

Answer explanation

PMAT

What is the role of spindle fibers during mitosis

• They help separate the chromosomes

• They break down the nuclear membrance

• They duplicate the DNA

• They make chromosomes visible

During which phase of mitosis are chromosomes separated into chromatids, with each sister chromatid getting pulled to the opposite side of the cell?

• anaphase

• metaphase

• telophase

• prophase

The two main stages of cell division are called?

• Mitosis and interphase

• synthesis and cytokinesis

• the M phase and the S phase

• mitosis and cytokinesis

During normal mitotic cell division, a parent cell that has four chromosomes will produce two daughter cells, each containing...

• two chromosomes

• one chromosomes

• four chromosomes

• eight chromosomes

The structure labeled A in the figure is called?

• centromere

• centriole

• sister chromatid

• spindle

Answer explanation

The middle connecting point between chromatids is called a centromere.

The letter B represented in the figure represents...

• centromere

• centrioles

• sister chromatids

• spoindles

During which phase(s) of mitosis are structures like the one shown visible?

• anaphase only

• prophase, metaphase, and anaphase

• metaphase only

• anaphase and interphase

Which of the following is a phase of mitosis?

• cytokinesis

• interphase

• prophase

• S phase