NEET BIOLOGY

Detailed explanation-1: -All normal cells (aside from stem cells) have a limited ability to divide. Cancer cells do not undergo senescence, instead, they are capable of dividing indefinitely. Cells which can divide indefinitely are termed immortal.

Detailed explanation-2: -Although cell growth is usually a continuous process, DNA is synthesized during only one phase of the cell cycle, and the replicated chromosomes are then distributed to daughter nuclei by a complex series of events preceding cell division.

Detailed explanation-3: -In normal cells, hundreds of genes intricately control the process of cell division. Normal growth requires a balance between the activity of those genes that promote cell proliferation and those that suppress it. It also relies on the activities of genes that signal when damaged cells should undergo apoptosis.

Detailed explanation-4: -Cells need to divide for your body to grow and for body tissue such as skin to continuously renew itself. When a cell divides, the outer membrane increasingly pinches inward until the new cells that are forming separate from each other. This process typically produces two new (daughter) cells from one (parent) cell.