Location of Illinois in the United States. Coordinates: 42Â°4â²34â³N 88Â°1â²33â³W / 42.07611Â°N 88.02583Â°W / 42.07611; -88.02583Coordinates: 42Â°4â²34â³N 88Â°1â²33â³W / 42.07611Â°N 88.02583Â°W / 42.07611; -88.02583. Rolling Meadows is a city in Cook County, Illinois, United States.
In meiosis I, chromosomes in a diploid cell resegregate, producing four haploid daughter cells. It is this step in meiosis that generates genetic diversity. Prophase I. DNA replication precedes the start of meiosis I. During prophase I, homologous chromosomes pair and form synapses, a step unique to meiosis. The paired chromosomes are called bivalents, and the formation of chiasmata caused by genetic recombination becomes apparent.
Mitosis. Mitosis is a form of eukaryotic cell division that produces two daughter cells with the same genetic component as the parent cell. Chromosomes replicated during the S phase are divided in such a way as to ensure that each daughter cell receives a copy of every chromosome. In actively dividing animal cells, the whole process takes about one hour.