Final answer:
In mitosis, a chromosome loss would result in one of the daughter cells having a chromosome number reduced by one (e.g., 45 instead of 46 in humans), while the other maintains the normal number.
Step-by-step explanation:
When a chromosome loss event occurs during mitosis of a diploid cell, the result is that one of the two resulting daughter cells will have one less chromosome than normal, and the other will have the normal number. Normally, mitosis should produce two genetically identical daughter cells, each with the same chromosome number as the parent cell. For example, if the diploid number is 2n = 46, as in human cells, after mitosis with proper chromosomal separation, both daughter cells should also have 46 chromosomes.
However, in the event of chromosome loss, one daughter cell may end up with 45 chromosomes. This is different from meiosis, where the goal is to produce haploid daughter cells with half the number of chromosomes as the diploid parent cell. Mitosis is for growth and maintenance, while meiosis is for sexual reproduction, producing gametes or spores.