A zygote is the initial cell formed when two gametes, typically a sperm and an egg, fuse during fertilization. This unique cell is diploid, meaning it contains two sets of chromosomes—one from each parent. In comparison, a daughter cell produced during mitosis is generated from a single parent cell (the mother cell) and is genetically identical to that mother cell, retaining the same diploid chromosome number.
The key difference lies in their origins and genetic makeup. A zygote is a result of sexual reproduction, combining genetic material from both parents, thus introducing genetic diversity. On the other hand, the daughter cells from mitosis are clones of the original cell, ensuring genetic stability and continuity within the organism’s cells.
In short, while both zygotes and daughter cells are crucial to development and growth, their formation processes and genetic contexts differ significantly.