@David, Moderator posted:
Hi, Sarah—To bring something with you is to have it with you as you go from one place to another. You can also carry things with you. Genetic diversity, when it figuratively comes somewhere, figuratively brings/carries with it all the stuff it involves. Genetic diversity is being personified as someone who can bring things with him- or herself wherever he or she goes.
Thank you David.
But the sentence structure still looks weird to me because "diversity of genetic disease" follows "it". Can I change the sentence to "Genetic diversity brings diversity of genetic disease with it"