Chapter 10 Mitosis

The cell cycle and Mitosis

Chapter 10

Multiple Choice

A cell biologist produces a karyotype of mouse somatic cells arrested in mitosis. She sees 40 chromosomes, which is completely normal for mice. Based on this information, what is the haploid number of chromosomes for mice?

• 10

• 20

• 40

• It cannot be determined

Multiple Choice

In bacterial cell division, the cell divides into two nearly equal halves. This process is referred to as:

• binary fission

• mitosis

• meiosis

• cytokinesis

Open Ended

How long do you think the cell cycle takes?

Multiple Choice

What is a chromatid?

• a chromosome in G1 of the cell cycle

• a replicate chromosome

• a chromosome found outside the nucleus

• a special region that holds two centromeres together

Multiple Choice

If there are 20 chromatids in a cell, how many centromeres are there?

• 10

• 20

• 40

• 80

Multiple Select

which phases are in mitosis ?

• interphase

• prophase

• metaphase

• cytokinesis

• anaphase

Multiple Choice

What is the next phase of mitosis?

• Prophase
• Metaphase
• Anaphase
• Telophase

Multiple Choice

Name the phase:

• Anaphase
• Telophase
• Metaphase
• Prophase

Multiple Choice

Fruit fly body cells have 8 chromosomes. After mitosis, you would expect a resulting fruit fly daughter cell to have ...

• 16 chromosomes.

• 46 chromosomes.

• 8 chromosomes.

• 4 chromosomes.

Multiple Choice

If a cell was capable of bypassing metaphase and going directly to anaphase, what is the most likely consequence of this?

• The resulting daughter cells would not have a nuclear envelope.

• The resulting daughter cells would have significantly different quantities of cytoplasmic materials.

• The resulting daughter cells would have different numbers of chromosomes.

• The resulting daughter cells would be completely normal.

Multiple Choice

At which of the cell cycle checkpoints do external forces have the greatest influence?

• G1 checkpoint

• G2 checkpoint

• M checkpoint

• G0 checkpoint

Multiple Choice

What is the main prerequisite for clearance at the G2 checkpoint?

• cell has reached a sufficient size

• an adequate stockpile of nucleotides

• accurate and complete DNA replication

• proper attachment of mitotic spindle fibers to kinetochores