Because of the fission process that consumes the fuels, the old fuel rods must be changed periodically to fresh ones (this period is called a cycle). However, only a part of the assemblies (typically one-third) are removed since the fuel depletion is not spatially uniform.
In fertilization, the sperm and egg both contain one set of chromosomes. the father (sperm) and one from the mother (egg). In SCNT, the egg cell's single set of chromosomes is removed. chromosomes. come from the somatic cell.
In both processes, Golgi-derived vesicles are translocated to the plane of partitioning by phragmoplast microtubules, and vesicle fusion, mediated by the cytokinesis-specific KNOLLE syntaxin, results in cell plate formation. In this way, endosperm cellularization can be viewed as a variant of somatic cytokinesis.