CIE iGCSE Co-Ordinated Science B16.2 Cell division Exam Style Questions Paper 2
Question
The diagram shows the chromosomes present in a cell.
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
▶️Answer/Explanation
Ans: B
Question
If 2n is the diploid number of chromosomes in a nucleus, which diagram is correct for meiosis?
▶️Answer/Explanation
Ans: D
Question
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
▶️Answer/Explanation
Answer: C
Explanation: Mitosis is a type of cell division that results in two daughter cells with the same number of chromosomes as the parent cell. It is involved in asexual reproduction, growth, and the replacement of worn-out cells. Gamete production, however, involves meiosis, which produces cells with half the number of chromosomes.
Question
Which row about meiosis or mitosis is correct?
▶️Answer/Explanation
Answer: A
Explanation: Meiosis is the process involved in gamete formation, and it produces haploid cells. Mitosis, on the other hand, is involved in growth and produces diploid cells. Therefore, option A is correct.