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.
Online Biology Dictionary (GAMET-) gametes /GAM-eets/ n. Haploid reproductive cells. Two gametes, one of each sex, fuse during fertilization to produce a zygote during sexual reproduction. A female reproductive cell is an ovum (or egg) and a male reproductive cell is a spermatozoon.