Which Joe gave his name to ‘sloppy joes’? We look at five interesting sandwiches and their lexical origins.
A segment of a DNA or RNA molecule containing information coding for a protein or peptide sequence.Compare with intron
- ‘Sequence data for each gene encompassed all coding exons and the intervening introns.’
- ‘The structure of the invertase genes are fairly similar, each containing between six and eight exons.’
- ‘All of them contained usually short fragments of coding sequences corresponding to exons of single-copy genes.’
- ‘He concluded that recombination had separated the genealogical histories of introns and exons within these genes.’
- ‘As a result, the protein sequences encoded by these exons are nearly identical between the two species.’
1970s: from expressed (see express) + -on.
Each of the four officers acting as commanders of the Yeomen of the Guard.
Mid 18th century: representing the pronunciation of French exempt ‘free from’, from Latin exempt- ‘taken out’, from the verb eximere, so named because these officers were exempt from normal duties.
We take a look at several popular, though confusing, punctuation marks.
From Afghanistan to Zimbabwe, discover surprising and intriguing language facts from around the globe.
The definitions of ‘buddy’ and ‘bro’ in the OED have recently been revised. We explore their history and increase in popularity.