Ijmb Model Questions Vol1 2024 Biology Question 2

Practice essay / theory question 2 from the 2024 Ijmb Model Questions Vol1 Biology examination. This question covers cell division, mitosis .

Ijmb Model Questions Vol1 2024 Biology Essay / Theory

Topics: cell division mitosis

Question 2 IJMB_MODEL_QUESTIONS_VOL1 • 2024 • BIOLOGY • essay

The labelled diagram shows the sequential stages of cell division (mitosis) in a typical animal cell.

Question Parts

( a )

Identify the stage in which sister chromatids separate and describe the key events that occur in this stage.

( b )

Explain the role of the spindle apparatus throughout mitosis, citing at least two distinct functions.

( c )

The diagram indicates that DNA replication occurs during Interphase. If the diploid chromosome number of the cell is 24, calculate:

( ) Number of chromatids present at the end of S‑phase.

( ) Number of chromatids present at the end of mitosis (just before cytokinesis).

( d )

A researcher treats the cells with a drug that disrupts microtubule polymerisation. Predict the stage at which the cell cycle is most likely to be arrested and justify your answer using the diagram.

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About This Question

This is Ijmb Model Questions Vol1 2024 Biology Question 2. It is one of the essay questions from the 2024 Ijmb Model Questions Vol1 Biology examination.

The question covers cell division, mitosis .

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