How many chromosomes do cells start
with at the beginning of Mitosis or
Meiosis?

46 chromosomes
Once mitosis is complete, the cell has two groups of 46 chromosomes, each enclosed with their own nuclear membrane. The cell then splits in two by a process called cytokinesis, creating two clones of the original cell, each with 46 monovalent chromosomes.

Bidk

Abay where the river empties into the sea