1 Select the cell in which you want the pop-up text to display. 2  Click the Data tab. 3  In Data Tools, click Data Validation, and then click Data Validation. 4  In the Input message tab, check Show input message when cell is selected.
Meiosis is a key event of the sexual cycle in Eukaryotes. It is the stage of the life cycle when a cell gives rise to two haploid cells (gametes) each having half as many chromosomes. Two such haploid gametes, arising from different individual organisms, fuse by the process of fertilization, thus completing the sexual cycle. Meiosis is ubiquitous among eukaryotes.
Cell division is simpler in prokaryotes than eukaryotes because prokaryotic cells themselves are simpler. Prokaryotic cells have a single circular chromosome, no nucleus, and few other organelles.Eukaryotic cells, in contrast, have multiple chromosomes contained within a nucleus, and many other organelles. Cell division is part of the life cycle of virtually all cells. 2  Cell division is the process in which one cell divides to form two new cells. 3  Most prokaryotic cells divide by the process of binary fission. 4  In eukaryotes, cell division occurs in two major steps: mitosis and cytokinesis.