Answer:
Languages are all developed from a common ancestral language, in this way languages within a language group relate to each other
Step-by-step explanation:
The genetic relationship between humans happens because of the biological transmissions of genes from a generation to the next. Therefore the language genetic relationship is not biologically determined; however, they are defined by the cultural communication for a generation to the other. This is, therefore, to mean that language is learned and not inherited from the biological genes.
However many languages across the world belong to a specified ancestral group, and that is why they are classified under ancestral language.