Can Straights Wrap Around?

An ace can be the lowest card of a straight (ace, 2, 3, 4, 5) or the highest card of a straight (ten, jack, queen, king, ace), but a straight can't "wrap around"; a hand with queen, king, ace, 2, 3 would be worthless (unless it's a flush).

Can a straight go JQKA 2?

So, to put it simply, the answer to the question in poker, can a straight go from ace to 2 is Yes!

Do straights loop in poker?

Straights are not cyclic, they're linear. Think of the Ace as the start point and end point but not at the same time. I.E. You can have an Ace high straight (10,J,Q,K,A) or a 5 high straight (A,2,3,4,5).