"Chromosome replication" refers to the process by which cells make copies of their DNA. It ensures that the new cells produced during cell division have the same genetic information as the original cell. Full definition
A team led by Rong Li of the Stowers Institute for Medical Research in Kansas City, Missouri, exposed baker's yeast cells (Saccharomyces cerevisiae) to stressful stimuli like heat and chemicals, and looked for changes in chromosome replication. (newscientist.com)
They shorten with every chromosome replication cycle. (sciencedaily.com)