Question 1

Which of the following best describes the product of mitosis in a typical eukaryotic somatic cell?

Accepted Answer

Two genetically identical daughter cells, each with the same number of chromosomes as the parent cell

Question 2

During which phase of the cell cycle is DNA replicated?

Accepted Answer

S phase

Question 3

What is the role of the mitotic spindle during mitosis?

Accepted Answer

It attaches to chromosomes and helps separate sister chromatids to opposite poles of the cell

Question 4

Which checkpoint in the cell cycle is considered the most important for determining whether a cell will divide?

Accepted Answer

G$$_1$$ checkpoint

Question 5

Cancer cells differ from normal cells in that they:

Accepted Answer

Do not stop dividing when growth factors are depleted

Question 6

Which of the following statements about binary fission in bacteria is correct?

Accepted Answer

The bacterial chromosome replicates and the cell divides into two genetically identical cells

Question 7

What is the function of cyclin-dependent kinases (Cdks) in the cell cycle?

Accepted Answer

They must bind to cyclins to become active and regulate progression through the cell cycle

Question 8

A cell in G$$_0$$ phase is:

Accepted Answer

Nondividing and has exited the cell cycle

Question 9

Which of the following best explains why multicellular organisms need cell division?

Accepted Answer

For embryonic development, renewal, and repair of tissues

Question 10

During which stage of mitosis do chromosomes align at the metaphase plate?

Accepted Answer

Metaphase

Question 11

What is the correct sequence of events in the eukaryotic cell cycle?

Accepted Answer

G$$_1$$ → S → G$$_2$$ → M

Question 12

Which of the following is a real-world example of density-dependent inhibition?

Accepted Answer

Normal skin cells stopping division when they fill a wound and touch neighboring cells

Question 13

If a human somatic cell has 46 chromosomes, how many chromosomes will each daughter cell have after mitosis?

Accepted Answer

$$46$$

Question 14

Which molecular complex triggers a cell’s passage past the G$$_2$$ checkpoint into M phase?

Accepted Answer

Cyclin-Cdk complex called MPF

Question 15

What is the main difference between benign and malignant tumors?

Accepted Answer

Malignant tumors can metastasize to other parts of the body, while benign tumors remain at the original site

Question 16

Which event occurs during anaphase of mitosis?

Accepted Answer

Sister chromatids are separated and move to opposite poles

Question 17

A researcher observes a cell with a cleavage furrow forming. What process is most likely occurring?

Accepted Answer

Cytokinesis in an animal cell

Question 18

Which of the following is true about chromatin?

Accepted Answer

It consists of DNA and proteins and is the material that makes up eukaryotic chromosomes

Question 19

A cell receives a signal to divide but lacks anchorage dependence. What is a possible consequence?

Accepted Answer

The cell may divide uncontrollably, contributing to tumor formation

Question 20

Which enzyme is responsible for cleaving cohesins during anaphase?

Accepted Answer

Separase

The Cell Cycle: Structure, Function, and Regulation

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