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Multiple Choice
What happens to the sister chromatids during Meiosis II?
A
They are separated into individual chromosomes.
B
They are duplicated again.
C
They remain paired and move to the same pole.
D
They undergo crossing over.
Verified step by step guidance
1
Understand the process of Meiosis II: Meiosis II is the second division in meiosis, which follows Meiosis I. It is similar to mitosis and involves the separation of sister chromatids.
Recall the structure of sister chromatids: Sister chromatids are identical copies of a chromosome, connected by a centromere. They are formed during DNA replication in the S phase of the cell cycle.
Identify the key event in Meiosis II: During Meiosis II, the sister chromatids are separated into individual chromosomes. This occurs in the anaphase stage of Meiosis II.
Consider the role of spindle fibers: Spindle fibers attach to the centromeres of the sister chromatids and pull them apart towards opposite poles of the cell.
Conclude the outcome of Meiosis II: The separation of sister chromatids results in four haploid cells, each containing individual chromosomes, which are genetically distinct from the parent cell.