Question 1

Which of the following best describes the main purpose of mitosis in eukaryotic cells?

Accepted Answer

To ensure equal distribution of genetic material to daughter cells

Question 2

During which phase of the cell cycle does DNA replication occur?

Accepted Answer

S phase

Question 3

A scientist observes a cell with chromosomes aligned at the equator of the cell. Which phase is the cell most likely in?

Accepted Answer

Metaphase

Question 4

What is the correct sequence of events during mitosis?

Accepted Answer

Prophase → Metaphase → Anaphase → Telophase

Question 5

Which of the following statements about cytokinesis is correct?

Accepted Answer

It is the process of splitting the cytoplasm to form two daughter cells

Question 6

If a mutation prevents a cell from completing the G2 phase, what is the most likely consequence?

Accepted Answer

The cell will not enter mitosis

Question 7

Which structure is responsible for holding sister chromatids together?

Accepted Answer

Centromere

Question 8

A cell is observed to have its nuclear envelope breaking down and spindle fibers forming. Which phase is this?

Accepted Answer

Prophase

Question 9

Which of the following best explains why cancer cells divide uncontrollably?

Accepted Answer

They do not respond to normal cell cycle regulatory signals

Question 10

What is the main difference between the cell cycle of prokaryotes and eukaryotes?

Accepted Answer

Eukaryotes have a more complex cell cycle with interphase and mitosis

Question 11

If a cell fails to properly separate sister chromatids during anaphase, what is the likely result?

Accepted Answer

One daughter cell may have extra chromosomes while the other has fewer

Question 12

Which phase of the cell cycle is primarily responsible for cell growth and preparation for DNA replication?

Accepted Answer

G1 phase

Question 13

What is the role of the spindle fibers during mitosis?

Accepted Answer

To attach to chromosomes and help separate sister chromatids

Question 14

Which of the following events occurs during telophase?

Accepted Answer

Nuclear envelopes reform around the chromosomes

Question 15

A cell is observed to be in a non-dividing state, carrying out its normal functions. Which phase is it most likely in?

Accepted Answer

G0 phase

Cell Division & Cell Cycle: Key Concepts and Processes

Study Guide - Practice Questions