Question

What would have been happened if any of the cells in nature had not been divided by meiosis?

Answer 1

If cells had not undergone meiosis, haploid gametes (n) would not be formed. Instead, the gametes would remain diploid (2n). After fertilisation, the zygote would have twice the normal number of chromosomes (4n), and the chromosome number would continue to increase in each generation, disrupting the species' normal chromosome number.