spindle fibers

Yes. That is correct.

Refer to the related link below for an illustration.

The area where the duplicated strands join is called the "replication fork." This is where the DNA helicase unwinds the DNA double helix, creating two single strands that serve as templates for the synthesis of new DNA strands.

Identical DNA molecules are most tightly attached to each other at the region known as the centromere, which is located in the middle of the chromosome. The centromere plays a crucial role in cell division by providing the attachment site for spindle fibers during mitosis and meiosis.

In meiosis I, homologous chromosomes pair up and exchange genetic material in a process called crossing over. The pairs then separate, resulting in two daughter cells with half the number of chromosomes of the parent cell. In meiosis II, the sister chromatids of each chromosome separate, producing four haploid daughter cells.