Actually... On second viewing, their graphic switches back and forth between left- and right-handed. I don't think they were intentionally showing Z-DNA.
This comparison is all sorts of wrong... As an Englishman who has lived in the US for several years, I have had to become bilingual to avoid disappointment when asking someone for a 'biscuit'.
I don't believe anyone in the US/UK would ever call the Danish/cinnamon roll thing 'bread'.
The top 'British English' biscuit (a digestive) is a true biscuit. However, the one below that (which appears to have some sort of chocolate chips in it) would probably be called a cookie. I would generally reserve the term 'cookie' for a sub-class of biscuit. All cookies are biscuits, but not all biscuits are cookies... especially if they are soggy.
Also, in general, all biscuits and scones are sweet(ish), and you certainly wouldn't dunk them into gravy... only tea.
I don't believe anyone in the US/UK would ever call the Danish/cinnamon roll thing 'bread'.
The top 'British English' biscuit (a digestive) is a true biscuit. However, the one below that (which appears to have some sort of chocolate chips in it) would probably be called a cookie. I would generally reserve the term 'cookie' for a sub-class of biscuit.
All cookies are biscuits, but not all biscuits are cookies... especially if they are soggy.
Also, in general, all biscuits and scones are sweet(ish), and you certainly wouldn't dunk them into gravy... only tea.