where do living cells come from?
Living cells come from a process known as cell division or cell reproduction. The process of cell division allows existing cells to divide and produce new cells. There are two main types of cell division: mitosis and meiosis.
Mitosis is the process by which one cell divides to produce two identical daughter cells. This type of cell division is involved in the growth, repair, and maintenance of multicellular organisms. During mitosis, the cell goes through a series of stages called prophase, metaphase, anaphase, and telophase, resulting in the formation of two genetically identical daughter cells.
Meiosis, on the other hand, is a special type of cell division that is involved in sexual reproduction. It occurs in specialized cells called gametes, which are involved in the formation of eggs and sperm. Meiosis involves two rounds of cell division, resulting in the formation of cells with half the number of chromosomes as the original cell. When two gametes fuse during fertilization, they form a fertilized egg, or zygote, which eventually develops into a new organism.
So, living cells come from the division of existing cells, whether it is through the process of mitosis for growth and maintenance or meiosis for sexual reproduction.