You are presented with the question "Mitosis begins when what unite in fertilization? " and the following answer choices: 
- seeds
 - gonads
 - alleles
 - plants
 - cells
 - gametes
 - zygotes
 - Flowers

Now knowing that gametes then unite in fertilization and form a diploid zygote and mitosis produces diploid cells, choose the best answer.


 

      gametes   