Unit 4: Continuity and Change
Topic 4.4: Cell and Nuclear Division Questions
Practice 20 exam-style questions for IB Biology Topic 4.4. Review the question stems below, then unlock the full Question Bank to access markschemes, model answers, and AI grading.
1Identify1 mark
What is the correct order of the four phases of mitosis?
Markscheme and model answer locked
Unlock Question2Identify1 mark
A complete karyogram of a body cell from a female gorilla shows every chromosome arranged in 24 matching pairs.
What is the total diploid chromosome number shown?
Markscheme and model answer locked
Unlock Question3Identify1 mark
During which phase of mitosis are the sister chromatids pulled apart to opposite poles of the cell?
Markscheme and model answer locked
Unlock Question4State1 mark
• Aimnova practice
State one criterion used to classify and pair the chromosomes when building a karyotype.
Markscheme and model answer locked
Unlock Question5Identify1 mark
What is the main activity of the cell during G1 phase?
Markscheme and model answer locked
Unlock Question6State1 mark
• Aimnova practice
State the name given to the structure that forms across the middle of a dividing plant cell and grows outwards to separate the two daughter cells.
Markscheme and model answer locked
Unlock Question7Identify1 mark
What happens to the chromosomes during the first division of meiosis (meiosis I)?
Markscheme and model answer locked
Unlock Question8Identify1 mark
Meiosis is described as a reduction division.
What does this mean?
Markscheme and model answer locked
Unlock Question9Identify1 mark
Which three stages, in order, make up interphase?
Markscheme and model answer locked
Unlock Question10State1 mark
• Aimnova practice
State the name of the stage of interphase during which the DNA is replicated.
Markscheme and model answer locked
Unlock Question11Identify1 mark
When chromosomes are being classified to build a karyotype, which of the following is a valid criterion used to sort and pair them?
Markscheme and model answer locked
Unlock Question12State1 mark
• Aimnova practice
State the phase of mitosis in which the sister chromatids are pulled apart to opposite poles of the cell.
Markscheme and model answer locked
Unlock Question13Identify1 mark
During which stage of interphase is the DNA replicated?
Markscheme and model answer locked
Unlock Question14Identify1 mark
A micrograph of an onion root-tip cell shows the chromosomes lined up single file along the middle of the cell.
Which phase of mitosis is this?
Markscheme and model answer locked
Unlock Question15State1 mark
• Aimnova practice
State what happens to the homologous chromosomes during the first division of meiosis (meiosis I).
Markscheme and model answer locked
Unlock Question17Identify1 mark
Which process shuffles whole maternal and paternal chromosomes by sorting each homologous pair to the poles at random during metaphase I?
Markscheme and model answer locked
Unlock Question18Describe4 marks
• Aimnova practice
Describe what is separated during each of the two divisions of meiosis, and state how many cells are present after each division.
Markscheme and model answer locked
Unlock Question19Identify1 mark
A stained root-tip slide shows 45 cells in mitosis out of 300 cells in total.
What is the mitotic index?
Markscheme and model answer locked
Unlock Question20Identify1 mark
A diagram of a cell shows each chromosome as a single, unpaired chromosome with no homologous partner.
How should this cell be classified?
Markscheme and model answer locked
Unlock QuestionReady to practice Topic 4.4?
Get instant AI feedback on your answers, view detailed markschemes, and track your progress across all IB Biology topics.