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Multiple Choice
What happens to sister chromatids during Meiosis II?
A
They pair up with homologous chromosomes.
B
They are separated into individual chromosomes.
C
They undergo crossing over.
D
They remain attached at the centromere.
Verified step by step guidance
1
Understand that Meiosis II is the second division in the process of meiosis, which is similar to mitosis.
Recall that during Meiosis I, homologous chromosomes are separated, resulting in two haploid cells, each with sister chromatids still attached.
In Meiosis II, the main event is the separation of sister chromatids, which are the identical copies of a chromosome connected by a centromere.
During Anaphase II of Meiosis II, the centromeres split, and the spindle fibers pull the sister chromatids apart toward opposite poles of the cell.
As a result, each sister chromatid becomes an individual chromosome, and the final outcome is four haploid cells, each with a single set of chromosomes.