Answer the following question given this paragraph: 

Duplicated chromosomes are composed of two sister chromatids. Chromosomes are compacted using a variety of mechanisms during certain stages of the cell cycle. Several classes of protein are involved in the organization and packing of the chromosomal DNA into a highly condensed structure. The condensing complex compacts chromosomes, and the resulting condensed structure is necessary for chromosomal segregation during mitosis.


Q: Duplicated chromosomes are composed of two sister what?

 Choices:

- karyotypes

- eukaryotes

- nucleotides

- chromatids

A:
chromatids
