Cell Division and Heredity · CSEC Biology

22 past-paper questions on Cell Division and Heredity, part of Continuity and Variation, from every CSEC Biology paper on Quelpr.

1. 1(b)4 marks· Biology Q1 1(b)Describe TWO differences between the outcomes of cell division by mitosis and cell division by meiosis.
2. 2(b)(ii)2 marks· Biology Q2 2(b)(ii)Explain why plants produced from the seeds of the tomato plant are NOT identical to the parent plant.
3. 2(c)(i)2 marks· Biology Q2 2(c)(i)Suggest TWO advantages that may be gained by propagating this plant asexually, for example, by tissue culture.
4. 3(a)(i)2 marks· Biology Q3 3(a)(i)On the diagram in Figure 6, write the name of the structures labelled I and II.
5. 3(a)(ii)1 mark· Biology Q3 3(a)(ii)What type of cell division is illustrated in Figure 6?
6. 3(a)(iii)2 marks· Biology Q3 3(a)(iii)Give TWO reasons for your response in (a) (ii) above.
7. 3(a)(iv)1 mark· Biology Q3 3(a)(iv)How many chromosomes would there be in the daughter cells produced in the cell division illustrated in Figure 6?
8. 3(a)(v)2 marks· Biology Q3 3(a)(v)Give TWO advantages to an organism of this type of cell division.
9. 3(b)(ii)2 marks· Biology Q3 3(b)(ii)Outline the process by which gametes are formed.
10. 3(b)(iii)1 mark· Biology Q3 3(b)(iii)If a plant has a diploid chromosome number of 8, how many chromosomes would be found in its gametes?
11. 3(c)2 marks· Biology Q3 3(c)Suggest TWO ways in which the process of meiosis may be useful to plants.
12. 4(a)6 marks· Biology Q4 4(a)Describe TWO events that occur in EACH of the following stages of meiosis I: Prophase I, Anaphase I, Telophase I.
13. 4(a)(i)2 marks· Biology Q4 4(a)(i)Name EACH type of cell division illustrated in Figure 4.
14. 4(a)(ii)2 marks· Biology Q4 4(a)(ii)Identify TWO differences between the processes observed in the illustrations in Figure 4.
15. 4(a)(iii)2 marks· Biology Q4 4(a)(iii)Name TWO specific locations in a plant where EACH type of cell division illustrated in Figure 4 occurs.
16. 4(a)(iv)4 marks· Biology Q4 4(a)(iv)Give TWO reasons why BOTH types of cell division are important in the life cycle of a plant.
17. 4(d)(i)2 marks· Biology Q4 4(d)(i)How many chromosomes would be present if the cell were part of a petal?
18. 4(d)(ii)2 marks· Biology Q4 4(d)(ii)How many chromosomes would be present if the cell were part of a pollen grain?
19. 6(a)2 marks· Biology Q6 6(a)Meiosis results in the formation of gametes. List TWO important events that occur during meiosis that can lead to genetic variation among offspring.
20. 6(a)6 marks· Biology Q6 6(a)Describe how the process of mitosis results in the production of identical cells in asexual reproduction.
21. 4(a)6 marks· CSEC Biology · January 2021 · Paper 2Sequentially describe the process of mitosis.
22. 4(c)6 marks· CSEC Biology · January 2021 · Paper 2Explain THREE other ways in which the process of mitosis is important for organisms besides animal cloning.