What is the difference between sister chromatids before and after anaphase II?

a. Before anaphase II, the sister chromatids are separate; after anaphase II, the sister chromatids join and form a
chromosome.
b. Before anaphase II, the sister chromatids form a single chromosome; after anaphase II, each sister chromatid is
an individual chromosome.
c. Before anaphase II, each sister chromatid is an individual chromosome; after anaphase II, the sister chromatids
form a single chromosome.
d. Before anaphase II, the sister chromatids form a single chromosome; after anaphase II, the sister chromatids
become homologous chromosomes.
e. There is no difference; they are still together as a single chromosome.


ANSWER: b

Biology & Microbiology

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