Great Migration: Life for Migrants in the City. By the end of 1919, some 1 million blacks had left the South, usually traveling by train, boat or bus; a smaller number had automobiles or even horse-drawn carts.
Genetic variation is increased by meiosis During fertilisation, 1 gamete from each parent combines to form a zygote. Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA.
The Law of Independent Assortment states that the alleles (or separate members of a gene pair) separate independently to form the gamete. By doing so, the traits are transferr â¦ ed independent from one another.ovanet answer Different traits are passed on to the offspring seperately from one another.....Good Luck. *****Mendel's Law of Independent Assortment states that factors for different characteristics are distributed to reproductive cells independently.