What would happen if the gametes do not have half the choromosome number as the skin parent?

Explanation

(1) If the reduction of chromosome number is not done, the chromosome number is doubled in the offspring.
(2) The change in chromosome number changes completely the characters in the individual.
(3) The offspring differs to parental generation.
(4) If the gametes do not have half of the chromosome number as the parent, when they fuse, they form zygote with double the number of chromosome when compared to parent cell.
(5) If it continues, cells in the offspring will have thousands of chromosome within few generations.
(6) If the chromosome number increases in a species it leads to the formation of abnormalities.