What would happen to an organism's total number of chromosomes every generation if mitosis produced gametes?

if mitosis produce gametes then after fertilization the chromosome number will double than parent and so on. in each generation chromosome sets which are 2n normally ensuring new generation should exactly similar to parent generation. but the case will change when gametes are not haploid. these will be 4n, in next generation it will be 8n, and in next it will be 16n and so on.

Explanation:

555555555555555555555555555555555555555555555555555555555555555555555555

answer: 21

step-by-step explanation:

divide 630 by 30. 30 goes into 630 21 times