Btcusd and btczar

These twoc instruments should be alike btcusd is just open over the weekend

My question is
If we see a gap or window it can be considered as a resistance or support level

But in this case we can assume the gap in btczar is because it's closed over the weekend

But I want to know does this rule still apply in terms of gaps.

If so how does this impact btcusd or will it have no effect at all

Or do we treat the two as independent