The last step in DNA replication is the putting together the Okazaki fragments so they are one seamless piece. This involves using an enzyme called DNA ligase. DNA ligase glues together the pieces of DNA to make one long molecule. The DNA can now be recoiled so that it will fit inside the cell. The recoiling process occurs when DNA winds around a histone protein. It is then packaged into chromatin. It is in this manner that DNA is able to fit inside the tiny nucleus of a cell.