Cell Cycle MCQs with Answers

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Welcome to the Cell Cycle MCQs with Answers. In this post, we have shared Cell Cycle Online Test for different competitive exams. Find practice Cell Cycle Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding Cell Cycle.

Cell Cycle Online Quiz

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Test Name: Cell Cycle MCQ Quiz Practice
Type: Quiz Test
Total Questions: 40
Total Marks: 40
Time: 40 minutes

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Cell Cycle

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1 / 40

Which phase of the cell cycle immediately follows mitosis?

Interphase

G2 phase

G1 phase

2 / 40

What is the significance of the G2 checkpoint?

Controls entry into the S phase

Regulates cell size

Checks for DNA damage and ensures proper DNA replication before entering mitosis

3 / 40

What is the purpose of the G2 phase?

Preparation for cell division

Growth and development

DNA synthesis

4 / 40

What is the role of the G2 checkpoint in the cell cycle?

Checks for DNA damage and ensures proper DNA replication

Controls entry into mitosis

Regulates cell size

5 / 40

What is the role of cyclins in the cell cycle?

Regulate the timing of the cell cycle

Synthesize DNA

Provide energy for mitosis

6 / 40

What happens during telophase of mitosis?

Sister chromatids separate and move towards opposite poles

Chromosomes condense and become visible

Chromosomes de-condense, and nuclear envelopes reform

7 / 40

What is the role of the spindle fibers during mitosis?

Provide structural support

Synthesize DNA

Separate sister chromatids and guide chromosome movement

8 / 40

Which phase of the cell cycle involves the replication of DNA?

G2 phase

S phase

G1 phase

9 / 40

What is the role of the centrioles during mitosis in animal cells?

Organize microtubules and form the mitotic spindle

Break down cellular waste

Synthesize proteins

10 / 40

What is the function of the M checkpoint in the cell cycle?

Ensures accurate chromosome alignment and attachment to the spindle

Regulates cell size

Controls entry into the G1 phase

11 / 40

What is the significance of mitosis in multicellular organisms?

Growth, development, and tissue repair

Energy production

DNA replication

12 / 40

What is the term for the two identical copies of a replicated chromosome?

Sister chromatids

Homologous chromosomes

Centromeres

13 / 40

What is the function of the kinetochore during mitosis?

Attach spindle fibers to the centromere of a chromosome

Synthesize ATP

Maintain cell shape

14 / 40

Which checkpoint ensures that DNA is undamaged before entering mitosis?

G2 checkpoint

G1 checkpoint

M checkpoint

15 / 40

What is the purpose of the G2 phase in the cell cycle?

DNA replication

Cellular growth

Final preparations for mitosis

16 / 40

What is the significance of the M checkpoint in the cell cycle?

Regulates cell size

Ensures accurate chromosome separation during mitosis

Controls entry into the S phase

17 / 40

What is the function of the mitotic spindle in mitosis?

Synthesizes DNA

Separates sister chromatids during cell division

Maintains cell shape

18 / 40

What is the term for the process of cell division in prokaryotic cells?

Mitosis

Binary fission

Meiosis

19 / 40

What is the G0 phase of the cell cycle?

Non-dividing state where cells exit the cell cycle

Growth phase

DNA synthesis phase

20 / 40

During which phase of mitosis do sister chromatids separate and move towards opposite poles?

Anaphase

Telophase

Metaphase

21 / 40

What is the name of the structure that organizes the mitotic spindle during cell division?

Nucleus

Ribosome

Centrosome

22 / 40

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

G1 phase

S phase

G2 phase

23 / 40

What is the result of mitosis?

One genetically identical daughter cell

Four non-identical daughter cells

Two genetically identical daughter cells

24 / 40

What is the cell cycle?

Cellular respiration process

Protein synthesis process

Series of events that lead to cell division

25 / 40

What is the primary function of the G1 checkpoint?

Ensure accurate chromosome separation

Check for DNA damage and assess cell size

Control entry into mitosis

26 / 40

What happens to the nuclear envelope during mitosis?

Remains intact

Expands in size

Breaks down and reforms

27 / 40

What is the term for the point at which sister chromatids are held together?

Centromere

Centriole

Cytokinesis

28 / 40

In which phase of the cell cycle does the cell grow and carry out normal metabolic activities?

G2 phase

S phase

G1 phase

29 / 40

What is the term for the division of the cytoplasm and organelles following mitosis?

Cytokinesis

G1 phase

Interphase

30 / 40

What is the term for the process of programmed cell death that eliminates unwanted or damaged cells?

Apoptosis

Mitosis

Necrosis

31 / 40

In which phase of mitosis do chromosomes condense and become visible under a microscope?

Prophase

Anaphase

Metaphase

32 / 40

In which phase of the cell cycle does a cell spend most of its time?

Metaphase

Interphase

Prophase

33 / 40

What is the role of the spindle apparatus during cell division?

Protection of genetic material

Synthesis of ATP

Separation of sister chromatids and chromosome movement

34 / 40

What is the role of the G1 phase in the cell cycle?

DNA replication

Preparation for mitosis

Cellular growth and normal metabolic processes

35 / 40

What is the first stage of interphase?

S phase

G1 phase

G2 phase

36 / 40

What is the purpose of the S phase in the cell cycle?

DNA synthesis and replication

Preparation for mitosis

Cellular growth

37 / 40

What is the term for the region of a chromosome where spindle fibers attach during cell division?

Centriole

Kinetochore

Nucleolus

38 / 40

What is the main function of the G1 phase?

DNA replication

Cellular growth and normal metabolic processes

Preparation for mitosis

39 / 40

What is the purpose of cytokinesis in the cell cycle?

Division of the cytoplasm and organelles

Formation of the mitotic spindle

DNA replication

40 / 40

What is the significance of the G1 checkpoint in the cell cycle?

Decides whether the cell will enter the cell cycle or exit and enter G0 phase

Regulates cell size

Controls entry into mitosis

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admin3 weeks ago

0 13 1 minute read