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Multiple Choice
What occurs during Anaphase II of meiosis?
A
Sister chromatids separate and move to opposite poles.
B
Nuclear envelope reforms around separated chromosomes.
C
Chromosomes align at the metaphase plate.
D
Homologous chromosomes separate and move to opposite poles.
Verified step by step guidance
1
Understand that meiosis is a type of cell division that reduces the chromosome number by half, resulting in four daughter cells, each genetically distinct from the parent cell.
Recall that meiosis consists of two stages: Meiosis I and Meiosis II. Anaphase II is a part of Meiosis II.
During Anaphase II, the key event is the separation of sister chromatids. These chromatids are identical copies of a chromosome that were previously duplicated during the S phase of the cell cycle.
The spindle fibers attached to the centromeres of the sister chromatids shorten, pulling the chromatids apart toward opposite poles of the cell.
This separation ensures that each daughter cell will receive an equal and complete set of chromosomes, contributing to genetic diversity in the resulting gametes.