How does sexual reproduction help to maintain genetic variation? Select all that apply. a)Reduction division reduces the number of chromosomes in a reproductive cell, resulting in four daughter cells with different DNA.
b) Reduction division increases the number of chromosomes in a cell, giving the gamete more genetic material to pass on.
c) Fertilization copies the DNA in an organism and creates a new organism with the same genetic code. d) Fertilization, or the fusing of two gametes, creates an organism with a new combination of DNA.​