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Question (41)

QN007729

Which stage of mitosis is characterised by formation of two daughter nuclei?

(A) Prophase
(B) Metaphase
(C) Anaphase
(D) Telophase

Correct Answer: D

Explanation:

Two daughter nuclei form during telophase.

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Question (42)

QN007730

The period between two successive cell divisions is called:

(A) Cytokinesis
(B) Interphase
(C) Anaphase
(D) Karyokinesis

Correct Answer: B

Explanation:

Interphase is the interval between two cell divisions.

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Question (43)

QN007731

Which process helps maintain chromosome number across generations in sexually reproducing organisms?

(A) Mitosis only
(B) Cytokinesis only
(C) Meiosis and fertilization
(D) Respiration

Correct Answer: C

Explanation:

Meiosis halves chromosome number and fertilization restores it.

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Question (44)

QN007732

Which stage of cell division is associated with maximum metabolic activity?

(A) Interphase
(B) Metaphase
(C) Anaphase
(D) Telophase

Correct Answer: A

Explanation:

Maximum metabolic activity occurs during interphase.

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Question (45)

QN007733

If a cell completes one cycle in 24 hours and spends 75% of the time in interphase, how long is interphase?

(A) 6 hours
(B) 12 hours
(C) 18 hours
(D) 20 hours

Correct Answer: C

Explanation:

75% of 24 hours = 18 hours.

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Question (46)

QN007734

Which process produces four daughter cells from one parent cell?

(A) Mitosis
(B) Binary fission
(C) Meiosis
(D) Budding

Correct Answer: C

Explanation:

Meiosis produces four daughter cells.

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Question (47)

QN007735

Which type of cells divide rapidly in plants?

(A) Meristematic cells
(B) Permanent cells
(C) Guard cells
(D) Xylem cells

Correct Answer: A

Explanation:

Meristematic cells actively divide.

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Question (48)

QN007736

Which stage of mitosis is characterised by chromosomes arranged in a straight line?

(A) Prophase
(B) Metaphase
(C) Anaphase
(D) Telophase

Correct Answer: B

Explanation:

Chromosomes align at the equator during metaphase.

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Question (49)

QN007737

The division of cytoplasm starts usually during:

(A) Interphase
(B) Metaphase
(C) Late anaphase or telophase
(D) Prophase

Correct Answer: C

Explanation:

Cytokinesis generally begins during late anaphase or telophase.

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Question (50)

QN007738

Which event occurs before a cell enters mitosis?

(A) Chromosome reduction
(B) DNA replication
(C) Crossing over
(D) Cell wall breakdown

Correct Answer: B

Explanation:

DNA replicates before mitosis begins.

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Question (41)

Which stage of mitosis is characterised by formation of two daughter nuclei?

Explanation:

Link:

Question (42)

The period between two successive cell divisions is called:

Explanation:

Link:

Question (43)

Which process helps maintain chromosome number across generations in sexually reproducing organisms?

Explanation:

Link:

Question (44)

Which stage of cell division is associated with maximum metabolic activity?

Explanation:

Link:

Question (45)

If a cell completes one cycle in 24 hours and spends 75% of the time in interphase, how long is interphase?

Explanation:

Link:

Question (46)

Which process produces four daughter cells from one parent cell?

Explanation:

Link:

Question (47)

Which type of cells divide rapidly in plants?

Explanation:

Link:

Question (48)

Which stage of mitosis is characterised by chromosomes arranged in a straight line?

Explanation:

Link:

Question (49)

The division of cytoplasm starts usually during:

Explanation:

Link:

Question (50)

Which event occurs before a cell enters mitosis?

Explanation:

Link:

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