Multiple Choice
Which cells are produced as a direct result of meiosis in sexually reproducing organisms?
33
views
9. Mitosis and Meiosis
Meiosis
Multiple Choice
Which of the following is a unique event that occurs in meiosis I (and not in meiosis II)?
A
Alignment of individual chromosomes (not homologous pairs) at the metaphase plate
B
Synapsis of homologous chromosomes with formation of chiasmata during prophase I
C
Separation of sister chromatids during anaphase
D
Replication of DNA during an interphase immediately preceding division
Verified step by step guidance1
Understand the key stages of meiosis I and meiosis II, focusing on the unique events that distinguish the two divisions.
Recall that meiosis I is the reductional division where homologous chromosomes pair up and separate, while meiosis II is the equational division where sister chromatids separate.
Identify that synapsis, the pairing of homologous chromosomes with formation of chiasmata (sites of crossing over), occurs specifically during prophase I of meiosis I and is not seen in meiosis II.
Note that alignment of individual chromosomes (not homologous pairs) at the metaphase plate and separation of sister chromatids occur during meiosis II, not meiosis I.
Recognize that DNA replication happens during the interphase before meiosis I, not during either meiotic division itself.
Related Videos
Related Practice
