Mendels law of segregation states that when a pair of allelomorphs
are brought together in the hybrid (F1) they remain together in
the hybrid without blending but separate complete and pure during gamete
formation. Whereas law of independent assortment states that when two
pairs of independent alleles are brought together in the hybrid F1,
they show independent dominant effects. In the formation of gametes the
law of segregation operates, but the factors assort
themselves independently at random and freely.