genome 2 instinct

In this chapter, Ridley thinks that the genetic determination of human instant is much more proable. He says there is a chromosome 7 that is linked to specific language impairment that has a relationship with inheritance and is shown 100%. He also states they the people with specific language impairment may function normally but require a more better vocabulary because they lack internalized grammar. He also says that human grammar is one of the best examples of this.