Question 1
During which phase of meiosis does synapsis occur, leading to the formation of tetrads?
A. Metaphase I
B. Prophase I
C. Anaphase I
D. Telophase II
Question 2
What is the primary significance of crossing over during meiosis?
A. It increases the rate of mutation.
B. It ensures the separation of homologous chromosomes.
C. It contributes to genetic diversity in the offspring.
D. It facilitates the equal division of cytoplasm.
Question 3
How many haploid cells are produced at the end of meiosis II?
A. Two
B. Four
C. Eight
D. Sixteen
Question 4
What are chiasmata?
A. The sites where sister chromatids are attached.
B. The points where two chromatids exchange genetic material.
C. The spindle fibres that separate chromosomes.
D. The regions of centromere on a chromosome.
Question 5
Which of the following statements about meiosis is correct?
A. Meiosis I is a reductional division, while meiosis II is an equational division.
B. Meiosis II is a reductional division, while meiosis I is an equational division.
C. Both meiosis I and II are reductional divisions.
D. Both meiosis I and II are equational divisions.
Question 6
a) Explain the significance of the S-phase of interphase in the context of meiosis. [3]
b) Describe the process of synapsis and its importance during prophase I. [2]
Question 7
a) Define the term "chiasmata" and explain its role in genetic diversity. [3]
b) Differentiate between the outcomes of meiosis I and meiosis II in terms of chromosome number and genetic information. [2]
Question 8
a) Describe the significance of crossing over in terms of genetic variation. [3]
b) Explain how meiosis contributes to the formation of genetically unique haploid cells. [2]
Question 9
a) Outline the events that occur during prophase I that contribute to genetic diversity. [4]
b) Explain the difference between homologous chromosomes and sister chromatids. [2]
c) Discuss the importance of the formation of four genetically unique haploid cells at the end of meiosis. [3]
Question 10
a) Describe the role of the centromere during meiosis. [3]
b) How does the random alignment of chromosomes during metaphase I contribute to genetic variation? [4]
c) Briefly explain why meiosis II is often compared to mitosis. [2]