Cell division — Paper 2 · IGCSE Sciences - Co-ordinated (Double) 0654

13 Mitosis is a process of nuclear division. What happens to the chromosome number in this process? A It is halved from diploid to haploid. B It is halved from haploid to diploid. C It is maintained by the exact duplication of chromosomes. D It is maintained by the exact fusion of chromosomes.

1 marks

Answer: C

This question in 0654/21 Oct/Nov 2017

10 Kangaroos have 16 chromosomes in their skin cells. How many chromosomes are there in a kangaroo sperm cell? A 4 B 8 C 16 D 32

1 marks

Answer: B

This question in 0654/21 Oct/Nov 2018

11 Which row about human cells is correct? number of name of cell type of nucleus chromosomes A body cell diploid 23 B body cell haploid 46 C gamete diploid 46 D gamete haploid 23

1 marks

Answer: D

This question in 0654/21 May/June 2019

11 A nucleus of a potato plant cell has 48 chromosomes. How many chromosomes will there be in a potato pollen nucleus? A 12 B 24 C 48 D 96

1 marks

Answer: B

This question in 0654/21 Oct/Nov 2019

11 A body cell taken from a male kangaroo contains 16 chromosomes in the nucleus. How many chromosomes would be found in the nucleus of a sperm cell from the same kangaroo and what term describes this number? chromosome description of number number A 8 diploid B 8 haploid C 16 diploid D 16 haploid

1 marks

Answer: B

This question in 0654/23 Oct/Nov 2019

10 In human reproduction, which cells are haploid? gametes zygotes v v 0 Oo WwW > v x x v x x

1 marks

Answer: B

This question in 0654/21 Oct/Nov 2020

11 Which row about meiosis or mitosis is correct? description of process involved in cell produced A meiosis gamete formation haploid B meiosis growth diploid C mitosis gamete formation diploid D mitosis growth haploid

1 marks

Answer: A

This question in 0654/22 Oct/Nov 2020

10 In human reproduction, which cells are haploid? gametes zygotes v v 00 WwW > v x x v x x

1 marks

Answer: B

This question in 0654/23 Oct/Nov 2020

10 Which row about these human cells is correct? type of chromosome description human cell number A gamete 23 diploid B gamete 46 haploid C zygote 46 diploid D zygote 23 haploid

1 marks

Answer: C

This question in 0654/21 May/June 2021

11 Which row about cell division is correct? type of cell chromosome number of cell chromosome cell division number at start cells produced number at end A meiosis diploid 2 haploid B meiosis haploid 4 diploid C mitosis diploid 2 diploid D mitosis haploid 4 haploid

1 marks

Answer: C

This question in 0654/23 May/June 2021

11 Four processes which require the production of new cells are listed. 1 asexual reproduction 2 gamete production 3 growth 4 replacement of worn out cells Which processes are brought about by mitosis? A 1 and 2 only B 1, 2 and 3 C 1, 3 and 4 D 2, 3 and 4

1 marks

Answer: C

This question in 0654/23 Oct/Nov 2021

11 The table gives statements about a human haploid nucleus. Which row is correct? a single set of unpaired found in produced by chromosomes gametes mitosis A x x v key 6 v v x / = true c x v v X = false D WA x x

1 marks

Answer: B

This question in 0654/22 Feb/March 2022

11 Which diagram about haploid and diploid cells in humans is correct? A B haploid diploid haploid diploid 23 23 46 pairs of chromosomes chromosomes gametes chromo- body cells somes gametes body cells C D haploid diploid haploid diploid 46 23 46 body 23 chromosomes chromosomes chromosomes cells chromosomes body cells gametes

1 marks

Answer: B

This question in 0654/23 May/June 2022

11 The diagram shows the chromosomes present in a cell. chromosomes The cell divides by meiosis. What correctly describes the cells that are produced? A genetically identical, 8 chromosomes, diploid B genetically different, 4 chromosomes, haploid C genetically identical, 4 chromosomes, diploid D genetically different, 8 chromosomes, haploid

1 marks

Answer: B

This question in 0654/21 Oct/Nov 2022

11 If 2n is the diploid number of chromosomes in a nucleus, which diagram is correct for meiosis? A B C D 2n 2n 2n 2n genetically genetically genetically genetically n 2n 2n n identical identical different different

1 marks

Answer: D

This question in 0654/22 Oct/Nov 2022

11 The diagram shows a nucleus from a cell of an organism. The structures shown within the nucleus are chromosomes. Why is the nucleus haploid? A because each chromosome contains only one copy of the DNA B because there are only four chromosomes C because there are two sets of chromosomes D because there is a single set of unpaired chromosomes

1 marks

Answer: D

This question in 0654/23 Oct/Nov 2022

11 What is a difference between a haploid nucleus and a diploid nucleus from the same plant? A The diploid nucleus has more chromosomes. B The diploid nucleus is the result of meiosis. C The haploid nucleus is the result of mitosis. D The haploid nucleus has more alleles.

1 marks

Answer: A

This question in 0654/23 Oct/Nov 2023

10 The body cells of tigers have 38 chromosomes. Which row shows the numbers of chromosomes involved during sexual reproduction in tigers? sperm offspring egg cell zygote cell body cell A 38 38 19 38 B 19 19 38 76 C 19 19 38 38 D 38 38 76 76

1 marks

Answer: C

This question in 0654/22 Feb/March 2024

11 Which row about the nucleus of human cells is correct? description number of example of nucleus chromosomes of cell A diploid 23 gamete B diploid 46 body C haploid 23 body D haploid 46 gamete

1 marks

Answer: B

This question in 0654/22 May/June 2024

10 What processes occur in the oviduct? A fertilisation and then the zygote undergoes meiosis B fertilisation and then the zygote undergoes mitosis C zygote undergoes meiosis and then fertilisation occurs D zygote undergoes mitosis and then fertilisation occurs

1 marks

Answer: B

This question in 0654/22 Oct/Nov 2024

11 Some information about a donkey and a horse is shown. ● The sperm from a donkey is able to fertilise the egg from a horse. ● The nucleus of a body cell from a horse has 64 chromosomes. ● The nucleus of a sperm cell from a donkey has 31 chromosomes. ● The offspring from a cross between a donkey and a horse is called a mule. How many chromosomes are in the nucleus of a body cell from a mule? A 31 B 63 C 64 D 95

1 marks

Answer: B

This question in 0654/22 May/June 2025

9 Kangaroos have 16 chromosomes in their skin cells. How many chromosomes are there in a kangaroo sperm cell? A 4 B 8 C 16 D 32

1 marks

Answer: B

This question in 0654/23 May/June 2025

12 Chimpanzee gametes contain one more chromosome than human gametes. What is the chromosome number in a chimpanzee diploid cell? A 23 B 24 C 46 D 48

1 marks

Answer: D

This question in 0654/21 Oct/Nov 2025

9 Sheep have 54 chromosomes in their body cells. Which row is correct for a female sheep? number of chromosomes egg cells in egg cells A 27 haploid B 54 haploid C 27 diploid D 54 diploid

1 marks

Answer: A

This question in 0654/23 Oct/Nov 2025

11 A student makes three statements about processes in cell division. 1 Process 1 is involved in the production of gametes. 2 The cells produced by process 2 are genetically different. 3 The zygote then divides by process 3, which leads to growth. Which row identifies each process? process 1 process 2 process 3 A meiosis meiosis mitosis B meiosis mitosis meiosis C mitosis mitosis meiosis D mitosis meiosis mitosis

1 marks

Answer: A

This question in 0654/23 Oct/Nov 2025