Cell Biology - Cell Cycle & Division
Q. During which phase of mitosis do the chromosomes align at the cell's equatorial plane? (2021)
-
A.
Prophase
-
B.
Metaphase
-
C.
Anaphase
-
D.
Telophase
Solution
During metaphase, chromosomes align at the metaphase plate, preparing for separation.
Correct Answer: B — Metaphase
Learn More →
Q. In which phase do sister chromatids separate and move to opposite poles of the cell? (2019)
-
A.
Prophase
-
B.
Metaphase
-
C.
Anaphase
-
D.
Telophase
Solution
During Anaphase, sister chromatids are pulled apart and move towards opposite poles of the cell.
Correct Answer: C — Anaphase
Learn More →
Q. In which phase do sister chromatids separate and move to opposite poles? (2019)
-
A.
Prophase
-
B.
Metaphase
-
C.
Anaphase
-
D.
Telophase
Solution
During Anaphase, sister chromatids are pulled apart and move toward opposite poles of the cell.
Correct Answer: C — Anaphase
Learn More →
Q. In which phase of the cell cycle does the cell spend the majority of its life? (2021)
-
A.
M phase
-
B.
G1 phase
-
C.
S phase
-
D.
G2 phase
Solution
The G1 phase is where the cell spends most of its life, performing normal functions and growing.
Correct Answer: B — G1 phase
Learn More →
Q. What is the main purpose of the G1 phase in the cell cycle? (2022)
-
A.
DNA replication
-
B.
Cell growth and preparation for DNA synthesis
-
C.
Chromosome separation
-
D.
Cell division
Solution
The G1 phase is primarily for cell growth and preparation for DNA synthesis.
Correct Answer: B — Cell growth and preparation for DNA synthesis
Learn More →
Q. What is the main purpose of the S phase in the cell cycle? (2022)
-
A.
Cell growth
-
B.
DNA replication
-
C.
Cell division
-
D.
Protein synthesis
Solution
The S phase is specifically for DNA replication, ensuring that each daughter cell receives a complete set of chromosomes.
Correct Answer: B — DNA replication
Learn More →
Q. What is the phase of the cell cycle where DNA is replicated? (2020)
-
A.
G1 phase
-
B.
S phase
-
C.
G2 phase
-
D.
M phase
Solution
The S phase (Synthesis phase) is where DNA replication occurs, resulting in the duplication of chromosomes.
Correct Answer: B — S phase
Learn More →
Q. What is the phase of the cell cycle where the cell grows and prepares for mitosis? (2020)
-
A.
G1 phase
-
B.
S phase
-
C.
G2 phase
-
D.
M phase
Solution
The G1 phase is the first stage of interphase where the cell grows and prepares for DNA replication.
Correct Answer: A — G1 phase
Learn More →
Q. What is the result of cytokinesis in animal cells? (2020)
-
A.
Formation of a cell plate
-
B.
Formation of two daughter cells
-
C.
Replication of DNA
-
D.
Separation of sister chromatids
Solution
Cytokinesis results in the physical separation of the cytoplasm, leading to the formation of two daughter cells.
Correct Answer: B — Formation of two daughter cells
Learn More →
Q. What is the role of cyclins in the cell cycle? (2019)
-
A.
To inhibit cell division
-
B.
To promote apoptosis
-
C.
To regulate the cell cycle
-
D.
To repair DNA
Solution
Cyclins are proteins that regulate the progression of the cell cycle by activating cyclin-dependent kinases (CDKs).
Correct Answer: C — To regulate the cell cycle
Learn More →
Q. What is the significance of the G2 phase in the cell cycle? (2022)
-
A.
Preparation for mitosis
-
B.
DNA replication
-
C.
Cell growth
-
D.
Chromosome alignment
Solution
The G2 phase is crucial for preparing the cell for mitosis, ensuring all DNA is replicated and the cell is ready to divide.
Correct Answer: A — Preparation for mitosis
Learn More →
Q. What is the term for the division of the cytoplasm during cell division? (2020)
-
A.
Mitosis
-
B.
Cytokinesis
-
C.
Interphase
-
D.
Telophase
Solution
Cytokinesis is the process that divides the cytoplasm of a parental cell into two daughter cells.
Correct Answer: B — Cytokinesis
Learn More →
Q. What structure forms during prophase to help separate chromosomes? (2022)
-
A.
Centromere
-
B.
Spindle fibers
-
C.
Chromatin
-
D.
Nuclear envelope
Solution
Spindle fibers form during prophase to help separate the chromosomes during mitosis.
Correct Answer: B — Spindle fibers
Learn More →
Q. Which checkpoint in the cell cycle ensures that DNA is not damaged before replication? (2023)
-
A.
G1 checkpoint
-
B.
G2 checkpoint
-
C.
M checkpoint
-
D.
S checkpoint
Solution
The G1 checkpoint assesses the cell's size and DNA integrity before it enters the S phase for replication.
Correct Answer: A — G1 checkpoint
Learn More →
Q. Which of the following is NOT a stage of the cell cycle? (2019)
-
A.
Interphase
-
B.
Prophase
-
C.
Cytokinesis
-
D.
Synthesis
Solution
Synthesis is not a stage of the cell cycle; it refers to the S phase where DNA is replicated.
Correct Answer: D — Synthesis
Learn More →
Q. Which phase follows metaphase in mitosis? (2023)
-
A.
Prophase
-
B.
Anaphase
-
C.
Telophase
-
D.
Interphase
Solution
Anaphase follows metaphase, where sister chromatids are pulled apart to opposite poles of the cell.
Correct Answer: B — Anaphase
Learn More →
Q. Which phase of the cell cycle is characterized by the division of the nucleus? (2018)
-
A.
Interphase
-
B.
Mitosis
-
C.
Cytokinesis
-
D.
G2 phase
Solution
Mitosis is the phase of the cell cycle where the nucleus divides, resulting in two nuclei.
Correct Answer: B — Mitosis
Learn More →
Q. Which phase of the cell cycle is characterized by the preparation for mitosis? (2021)
-
A.
G1 phase
-
B.
S phase
-
C.
G2 phase
-
D.
M phase
Solution
The G2 phase is where the cell prepares for mitosis, ensuring all DNA is replicated and the cell is ready to divide.
Correct Answer: C — G2 phase
Learn More →
Showing 1 to 18 of 18 (1 Pages)