BIOS 255 Week 5 Quiz Exam 1 (Latest
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. Which phase of the cell cycle involves DNA replication?
A. G1
B. S
C. G2
D. M
Correct Answer: B
Rationale: DNA synthesis occurs during the S phase.
2. Which phase prepares the cell for mitosis after DNA
replication?
A. G1
B. S
C. G2
D. M
Correct Answer: C
Rationale: G2 phase allows the cell to grow and check for DNA
errors before mitosis.
,3. Which phase is primarily for cell growth and metabolic
activity?
A. G1
B. S
C. G2
D. M
Correct Answer: A
Rationale: G1 phase focuses on cell growth and normal metabolic
processes.
4. Which phase is where cell division occurs?
A. G1
B. S
C. G2
D. M
Correct Answer: D
Rationale: M phase includes mitosis and cytokinesis.
5. During which stage of mitosis do chromosomes condense?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Correct Answer: A
Rationale: Chromosomes condense at the beginning of prophase.
,6. During which stage of mitosis do chromosomes align at the
equatorial plate?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Correct Answer: B
Rationale: Chromosomes line up at the metaphase plate during
metaphase.
7. During which stage of mitosis do sister chromatids separate?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Correct Answer: C
Rationale: Sister chromatids are pulled to opposite poles during
anaphase.
8. During which stage of mitosis does the nuclear envelope
reform?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
, Correct Answer: D
Rationale: The nuclear membrane re-forms around separated
chromosomes in telophase.
9. What is the function of the spindle apparatus?
A. Synthesize DNA
B. Pull chromatids apart
C. Produce ATP
D. Digest macromolecules
Correct Answer: B
Rationale: Spindle fibers attach to chromosomes and separate sister
chromatids.
10. Which structure connects sister chromatids to spindle fibers?
A. Centromere
B. Kinetochore
C. Telomere
D. Chromatin
Correct Answer: B
Rationale: Kinetochores attach chromosomes to spindle
microtubules.
11. Which phase of meiosis reduces the chromosome number by
half?
Update ) Anatomy and
Physiology IV with Lab | Questions &
Answers | 100% Correct | Grade A -
Chamberlain
1. Which phase of the cell cycle involves DNA replication?
A. G1
B. S
C. G2
D. M
Correct Answer: B
Rationale: DNA synthesis occurs during the S phase.
2. Which phase prepares the cell for mitosis after DNA
replication?
A. G1
B. S
C. G2
D. M
Correct Answer: C
Rationale: G2 phase allows the cell to grow and check for DNA
errors before mitosis.
,3. Which phase is primarily for cell growth and metabolic
activity?
A. G1
B. S
C. G2
D. M
Correct Answer: A
Rationale: G1 phase focuses on cell growth and normal metabolic
processes.
4. Which phase is where cell division occurs?
A. G1
B. S
C. G2
D. M
Correct Answer: D
Rationale: M phase includes mitosis and cytokinesis.
5. During which stage of mitosis do chromosomes condense?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Correct Answer: A
Rationale: Chromosomes condense at the beginning of prophase.
,6. During which stage of mitosis do chromosomes align at the
equatorial plate?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Correct Answer: B
Rationale: Chromosomes line up at the metaphase plate during
metaphase.
7. During which stage of mitosis do sister chromatids separate?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Correct Answer: C
Rationale: Sister chromatids are pulled to opposite poles during
anaphase.
8. During which stage of mitosis does the nuclear envelope
reform?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
, Correct Answer: D
Rationale: The nuclear membrane re-forms around separated
chromosomes in telophase.
9. What is the function of the spindle apparatus?
A. Synthesize DNA
B. Pull chromatids apart
C. Produce ATP
D. Digest macromolecules
Correct Answer: B
Rationale: Spindle fibers attach to chromosomes and separate sister
chromatids.
10. Which structure connects sister chromatids to spindle fibers?
A. Centromere
B. Kinetochore
C. Telomere
D. Chromatin
Correct Answer: B
Rationale: Kinetochores attach chromosomes to spindle
microtubules.
11. Which phase of meiosis reduces the chromosome number by
half?
