If you have two copies of the same version of a gene, you are homozygous for that gene. If you have two different versions of a gene, you are heterozygous for that gene.
Author: Mike Nova
Has anyone been able to successfully list their cars on cars.com? It seems they intentionally block out private sellers from listing in favor of dealers. Recently, I’ve been trying to sell my car. I create an account with cars.com and submit my listing. I receive a confirmation saying it will be published within 24 hours.

