What do 'a magazine article' and 'ads' refer to?
The passage below is from ‘the Blank Slate’ by Steven Pinker.
http://evolbiol.ru/blankslate/blankslate.htmThere are two other reasons why the complexity of the genome is not reflected in the number of genes it contains. One is that a given gene can produce not just one protein but several. A gene is typically broken into stretches of DNA that code for fragments of protein (exons) separated by stretches of DNA that don't (introns), a bit like a magazine article interrupted by ads. The segments of a gene can then be spliced together in multiple ways. In this passage I want to know what 'a magazine article' and 'ads' refer to.
It seems to me that the former stands for 'exons' and the latter 'introns.'
Am I right?