RD: In cases where we have polymorphisms [various forms of the same trait], like blue eyes and brown eyes, it could be that in different parts of the world different color eyes convey different advantages.
(we; have; polymorphisms [various forms of the same trait], like blue eyes and brown eyes; L:cases) (it; could be; that in different parts of the world different color eyes convey different advantages; L:In cases) Context(it could be,List([107, 118))):(the world different color eyes; convey; different advantages)
it could be,List([107, 118))
we it the world different color eyes
have could be convey
polymorphisms [various forms of the same trait], like blue eyes and brown eyes L:cases
that in different parts of the world different color eyes convey different advantages L:In cases
different advantages