There are three types of genetic tests: autosomal, mitochondrial (mtDNA) and Y-DNA. Autosomal test will find you genetical connections to the people of the world on both mother's and father's side, while mtDNA test will tell your mitochondrial DNA haplogroup that you inherited from mother, grandmother etc. and connections with other people over maternal sides. Y-DNA test is only for males, because females don't have an Y-chromosome, and it will tell your Y-haplogroup and paternal connections with other people.
My results from MyHeritage
(autosomal test)