The Law of Segregation is also known as the Law of purity of gametes as each and every gamete is true or pure for the trait carried by it.
During the gamete formation of an organism, each gene receives only one copy of the gene being selected randomly.
This is termed the law of segregation.
Mendel’s monohybrid cross states that during the formation of gametes, the alleles for each gene get segregated from each other. Only one allele is carried by each gamete for each gene.
Unit factors from the paternal and maternal gametes get combined together and get paired during the union of gametes.
The bringing together of these unit factors does not mix or affect each other.