Final answer:
The centromere is a region of attachment for sister chromatids during cell division, while the centrosome organizes microtubules and chromosomes.
Step-by-step explanation:
The centromere is a region of attachment for two sister chromatids during cell division. It is the point where the two identical copies of a chromosome, called sister chromatids, are joined together. The centromere plays a crucial role in ensuring that each daughter cell receives the correct number of chromosomes.
Additionally, the centrosome, which is located near the nucleus of animal cells, acts as a microtubule-organizing center. It contains a pair of centrioles that help organize the chromosomes before cell division, ensuring proper distribution.
In summary, the centromere is a region of attachment for sister chromatids, while the centrosome is involved in organizing microtubules and chromosomes before cell division.