How does a zygote differ from a daughter cell produced in mitosis of the mother?

Zygote is formed by the fusion of two cells named sperm and egg. Daughter cell of mitosis is the cell which is formed by the division of a cell.

Explanation:

Zygote: Sperm cell (N) from the father and egg cell (N) from the mother which are both haploid, fused to form a zygote, so the zygote is diploid cell (2N), which contain the genetic material of two different cells. Zygote mature into an organism.

Daughter cell : Mitosis is the process of cell division in which a cell divides into 2 daughter cell which both are similar. Both contain the same number of chromosome as the parental cell (2N), because in mitosis, cell first replicate their DNA and then it divides into two daughter cell, both are diploid (2N).

Meiosis produces cells that will fus to form a zygote, to maintain organisms with the correct number of chromosomes, meiosis produces haploid daughter cells, for the same reasons mitosis produces diploid daughter cells to maintain genetic material in all the tissues.