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Cell Cycle Online Exam Quiz

Important questions about Cell Cycle. Cell Cycle MCQ questions with answers. Cell Cycle exam questions and answers for students and interviews.

1. How many chromatids are there in a duplicated chromosome?

Options

A : One

B : Two

C : Three

D : Four

2. The centromeres move toward the poles in __________ .

Options

A : anaphase

B : interphase

C : metaphase

D : prophase

3. The cell cycle is controlled in most cells by

Options

A : time (after a certain length of time the cell divides)

B : a series of checkpoints

C : cell size (when the cell reaches a certain size, it divides)

D : different cells exhibit different control strategies

4. Which of the following statements about mitosis is incorrect?

Options

A : The daughter nuclei are genetically identical to the parent nucleus

B : Chromosomes separate during anaphase due to the interaction of polar microtubules from opposite poles pushing against each other

C : Chromosomes separate during anaphase when the kinetochore microtubules shorten as they depolymerize

D : Chromosomes move to the metaphase plate using motor proteins, a kind of kinesin, attached to spindle fibers

5. Which phase of mitosis is associated with separation of chromatids?

Options

A : Prophase

B : Metaphase

C : Anaphase

D : Telophase

6. The term homologous chromosomes

Options

A : refers to replications of the same chromosome

B : is another name for sister chromatids

C : must be haploid

D : means a pair of chromosomes of the same kind, such as sex chromosomes

7. The term, not related to mitosis is

Options

A : gametes

B : chromosomes

C : DNA replication

D : somatic cells

8. Which of the following triggers the division of activated T lymphocytes?

Options

A : FGF

B : Interlukin 2

C : PDGF

D : Erythroprotein

9. Microtubules grow from the poles to kinetochores of each chromatid during

Options

A : prophase

B : metaphase

C : anaphase

D : telophase

10. At which of the following check point, mitosis is controlled?

Options

A : G 1

B : G 2

C : M

D : S

1. Which of the following is the normal cell cycle, primarily regulated at checkpoints?

Options

A : Metaphase in mitosis

B : Anaphase, G1 boundary

C : G1-S boundary

D : S-G2 boundary

2. Which of the following is the primary growth phase of a cell?

Options

A : G 1

B : G 2

C : M

D : G 0

3. The G0 phase is

Options

A : a permanent state of all body cells

B : the state of most cells in an animal body

C : another name for interphase

D : all of the above

4. Which of the following from a blood clot stimulates the growth of cells in the healing process?

Options

A : EGF

B : PDGF

C : MPF

D : NGF

5. What structure forms as a network of protein cables during cell division?

Options

A : Spindle

B : Aster

C : Kinetochore

D : Chromatid

6. In prokaryotes, just before the cell divides, the two daughter genomes are attached side by side to the

Options

A : cell membrane

B : replication origin

C : centromeres

D : equatorial plate

7. In which phase, each chromosome replicates to produce two sister chromatids?

Options

A : Anaphase

B : Interphase

C : Metaphase

D : Prophase

8. Each chromosome contains two chromatids by the end of the __________ phase in the life cycle of a human cell.

Options

A : C

B : G 2

C : M

D : S

9. At the center of the cell cycle control system is Cdk, a protein that

Options

A : is phosphorylated to become active

B : binds to different cyclins

C : is only active during mitosis

D : manufactures growth factors

10. The event(s) which does not occur during interphase, is/are

Options

A : Chromatin condenses

B : Protein Synthesis

C : Organelles replication

D : DNA replication

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