Question

New cells originate ______.

Options

• By fragmentation of a pre-existing cell

• By regeneration of old cells

• By cell division of a pre-existing cell

• From inorganic and organic materials of the body

Answer 1

New cells originate by cell division of pre-existing cell.

Explanation:

According to cell theory, new cells arise only from pre-existing cells through cell division. They do not form spontaneously from non-living materials.