Explain why the chromosomes in the second drawing have sister chromatids, but the chromosomes in the third drawing do not. What happened to the sister chromatids?
The chromosomes in the second drawing have sisterchromatids because each chromosome has undergone replication.
The chromosomes in the third drawing do not have sisterchromatids because they have been separated into individual chromosomes.
MITOSIS:
The diagram in this question depicts the process of mitosis, which is the process whereby a single cell produces two daughter cells that are genetically identical to one another.
Prior to cell division, the chromosomes of each cell undergoes replication to form sisterchromatids joined together by a centromere (second drawing). Each sister chromatid is an exact replica of one another.
However, during the anaphase stage of mitosis, the sister chromatids are pulled apart/separated into individual chromosomes as depicted in third drawing.
Learn more about mitotic division at: https://brainly.com/question/17356405?referrer=searchResults
