Answer: The correct answer for the fill in the blank is Meiosis.
Meiosis is a type of cell division, which is a typical feature of sexually reproducing organisms. Meiosis takes place during gamete ( reproductive cells like sperms and egg) formation in each parent. The gametes are haploid as they contain half number of chromosomes as compared to parent cell.
According to the Mendel's Law of Segregation, alleles ( different forms of gene) are passed into each gamete during gamete formation through the process called meiosis.
Thus, Meiosis is the right answer.
