Multiple Choice
What happens during Anaphase I of meiosis?
359
views
12. Meiosis
Meiosis I
Struggling with General Biology?
Join thousands of students who trust us to help them ace their exams!Watch the first videoMultiple Choice
Which of the following is a key difference between Meiosis I and Meiosis II?
A
Meiosis I results in four haploid cells, while Meiosis II results in two diploid cells.
B
DNA replication occurs before Meiosis II but not before Meiosis I.
C
Homologous chromosomes are separated in Meiosis I, while sister chromatids are separated in Meiosis II.
D
Crossing over occurs during Meiosis II but not during Meiosis I.
Verified step by step guidance1
Understand the process of meiosis, which consists of two stages: Meiosis I and Meiosis II. Each stage has distinct roles in the formation of gametes.
In Meiosis I, homologous chromosomes are separated. This is a reductional division, meaning it reduces the chromosome number by half, resulting in two haploid cells.
In Meiosis II, sister chromatids are separated. This is an equational division, similar to mitosis, and it results in four haploid cells from the two cells produced in Meiosis I.
Crossing over, which is the exchange of genetic material between homologous chromosomes, occurs during Prophase I of Meiosis I, not during Meiosis II.
DNA replication occurs before Meiosis I during the S phase of the cell cycle, but it does not occur again before Meiosis II. This ensures that each of the four resulting cells has a single set of chromosomes.
Related Videos
Related Practice
