Final answer:
At the conclusion of mitosis, each daughter cell resulting from the division of a dog's cell will contain 78 chromosomes, maintaining the same chromosomal count as the original parent cell.
Step-by-step explanation:
If a dog has 78 chromosomes inside every one of its cells, at the end of mitosis, each daughter cell will have 78 chromosomes. This is because mitosis is a type of cell division that results in two daughter cells each having the same number and kind of chromosomes as the parent nucleus, typical of ordinary tissue growth. By the end of mitosis, the chromosomes that were duplicated during previous phases of the cell cycle are equally divided between the two new cells, preserving the chromosomal count.
Therefore, after a dog's cell completes mitosis, the two resulting daughter cells will be diploid, containing two sets of chromosomes, with 78 chromosomes each.